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Theodore Roosevelt, who came into office in 1901 and served until 1909, is considered the first modern President because he significantly expanded the influence and power of the executive office. From the Civil War to the turn of the twentieth century, the seat of power in the national government resided in the U.S. Congress. Beginning in the 1880s, the executive branch gradually increased its power. Roosevelt seized on this trend, believing that the President had the right to use all powers except those that were specifically denied him to accomplish his goals. As a result, the President, rather than Congress or the political parties, became the center of the American political arena. As President, Roosevelt challenged the ideas of limited government and individualism. In their stead, he advocated government regulation to achieve social and economic justice. He used executive orders to accomplish his goals, especially in conservation, and waged an aggressive foreign policy. He was also an extremely popular President and the first to use the media to appeal directly to the people, bypassing the political parties and career politicians.

Early Life

Frail and sickly as a boy, "Teedie" Roosevelt developed a rugged physique as a teenager and became a lifelong advocate of exercise and the "strenuous life." After graduating from Harvard, Roosevelt married Alice Hathaway Lee and studied law at Columbia University. He dropped out after a year to pursue politics, winning a seat in the New York Assembly in 1882.

Click to read Roosevelt's diary entry
from the Theodore Roosevelt Center.

A double tragedy struck Roosevelt in 1884, when his mother and his wife died in the same house on the same day. Roosevelt spent two years out West in an attempt to recover, tending cows as a rancher and busting outlaws as a frontier sheriff. In 1886, he returned to New York and married his childhood sweetheart, Edith Kermit Carow. They raised six children, including Roosevelt's daughter from his first marriage. After losing a campaign for mayor, he served as Civil Service commissioner, president of the New York City Police Board, and assistant secretary of the Navy. All the while, he demonstrated honesty in office, upsetting the party bosses who expected him to ignore the law in favor of partisan politics.

War Hero and Vice President

When the Spanish-American War broke out in 1898, Roosevelt volunteered as commander of the 1st U.S. Volunteer Cavalry, known as the Rough Riders, leading a daring charge on San Juan Hill. Returning as a war hero, he became governor of New York and began to exhibit an independence that upset the state's political machine. To stop Roosevelt's reforms, party bosses "kicked him upstairs" to the vice presidency under William McKinley, believing that in this position he would be unable to continue his progressive policies. Roosevelt campaigned vigorously for McKinley in 1900—one commentator remarked, "Tis Teddy alone that's running, an' he ain't a runnin', he's a gallopin'." Roosevelt's efforts helped ensure victory for McKinley. But his time as vice president was brief; McKinley was assassinated in 1901, making Roosevelt the President of the United States.

By the 1904 election, Roosevelt was eager to be elected President in his own right. To achieve this, he knew that he needed to work with Republican Party leaders. He promised to hold back on parts of his progressive agenda in exchange for a free hand in foreign affairs. He also got the reluctant support of wealthy capitalists, who feared his progressive measures, but feared a Democratic victory even more. TR won in a landslide, becoming the first President to be elected after gaining office due to the death of his predecessor. Upon victory, he vowed not to run for another term in 1908, a promise he came to regret.

Modern Presidency

As President, Roosevelt worked to ensure that the government improved the lives of American citizens. His "Square Deal" domestic program reflected the progressive call to reform the American workplace, initiating welfare legislation and government regulation of industry. He was also the nation's first environmentalist President, setting aside nearly 200 million acres for national forests, reserves, and wildlife refuges. In foreign policy, Roosevelt wanted to make the United States a global power by increasing its influence worldwide. He led the effort to secure rights to build the Panama Canal, one of the greatest engineering feats at that time. He also issued his "corollary" to the Monroe Doctrine, which established the United States as the "policeman" of the Western Hemisphere. In addition, he used his position as President to help negotiate peace agreements between belligerent nations, believing that the world should settle international disputes through diplomacy rather than war. Roosevelt is considered the first modern U.S. President because he greatly strengthened the power of the executive branch. He was also an extremely popular President—so popular after leaving office in 1909 that he was able to mount a serious run for the presidency again in 1912. Believing that his successor, William Howard Taft, had failed to continue his program of reform, TR threw his hat into the ring as a candidate for the Progressive Party. Although Roosevelt was defeated by Democrat Woodrow Wilson, his efforts resulted in the creation of one of the most significant third parties in U.S. history. With the onset of World War I in 1914, Roosevelt advocated that the United States prepare itself for war. Accordingly, he was highly critical of Wilson's pledge of neutrality. Once the United States entered the war in 1917, all four of Roosevelt's sons volunteered to serve, which greatly pleased the former President. The death of his youngest son, Quentin, left him deeply distraught. Theodore Roosevelt died less than a year later.

With the assassination of President William McKinley, Theodore Roosevelt, not quite 43, became the 26th and youngest President in the Nation’s history (1901-1909). He brought new excitement and power to the office, vigorously leading Congress and the American public toward progressive reforms and a strong foreign policy.

With the assassination of President McKinley, Theodore Roosevelt, not quite 43, became the youngest President in the Nation’s history. He brought new excitement and power to the Presidency, as he vigorously led Congress and the American public toward progressive reforms and a strong foreign policy.

He took the view that the President as a “steward of the people” should take whatever action necessary for the public good unless expressly forbidden by law or the Constitution.” I did not usurp power,” he wrote, “but I did greatly broaden the use of executive power.”

Roosevelt’s youth differed sharply from that of the log cabin Presidents. He was born in New York City in 1858 into a wealthy family, but he too struggled–against ill health–and in his triumph became an advocate of the strenuous life.

In 1884 his first wife, Alice Lee Roosevelt, and his mother died on the same day. Roosevelt spent much of the next two years on his ranch in the Badlands of Dakota Territory. There he mastered his sorrow as he lived in the saddle, driving cattle, hunting big game–he even captured an outlaw. On a visit to London, he married Edith Carow in December 1886.

During the Spanish-American War, Roosevelt was lieutenant colonel of the Rough Rider Regiment, which he led on a charge at the battle of San Juan. He was one of the most conspicuous heroes of the war.

Boss Tom Platt, needing a hero to draw attention away from scandals in New York State, accepted Roosevelt as the Republican candidate for Governor in 1898. Roosevelt won and served with distinction.

As President, Roosevelt held the ideal that the Government should be the great arbiter of the conflicting economic forces in the Nation, especially between capital and labor, guaranteeing justice to each and dispensing favors to none.

Roosevelt emerged spectacularly as a “trust buster” by forcing the dissolution of a great railroad combination in the Northwest. Other antitrust suits under the Sherman Act followed.

Roosevelt steered the United States more actively into world politics. He liked to quote a favorite proverb, “Speak softly and carry a big stick. . . . ”

Aware of the strategic need for a shortcut between the Atlantic and Pacific, Roosevelt ensured the construction of the Panama Canal. His corollary to the Monroe Doctrine prevented the establishment of foreign bases in the Caribbean and arrogated the sole right of intervention in Latin America to the United States.

He won the Nobel Peace Prize for mediating the Russo-Japanese War, reached a Gentleman’s Agreement on immigration with Japan, and sent the Great White Fleet on a goodwill tour of the world.

Some of Theodore Roosevelt’s most effective achievements were in conservation. He added enormously to the national forests in the West, reserved lands for public use, and fostered great irrigation projects.

He crusaded endlessly on matters big and small, exciting audiences with his high-pitched voice, jutting jaw, and pounding fist. “The life of strenuous endeavor” was a must for those around him, as he romped with his five younger children and led ambassadors on hikes through Rock Creek Park in Washington, D.C.

Leaving the Presidency in 1909, Roosevelt went on an African safari, then jumped back into politics. In 1912 he ran for President on a Progressive ticket. To reporters he once remarked that he felt as fit as a bull moose, the name of his new party.

While campaigning in Milwaukee, he was shot in the chest by a fanatic. Roosevelt soon recovered, but his words at that time would have been applicable at the time of his death in 1919: “No man has had a happier life than I have led; a happier life in every way.”

The Presidential biographies on WhiteHouse.gov are from “The Presidents of the United States of America,” by Frank Freidel and Hugh Sidey. Copyright 2006 by the White House Historical Association.

Learn more about Theodore Roosevelt’s spouse, Edith Kermit Carow Roosevelt.