The four U.S. presidents who served in office without a vice president were John Tyler, Millard Fillmore, Andrew Johnson and Chester A. Arthur. Each of these four men were vice presidents succeeding presidents who died i... More »

Only the U.S. House of Representatives can impeach a sitting U.S. President, and it must do so with a simple majority vote on one or more articles of impeachment. Any member of the House of Representatives can introduce ... More »

The Constitution of the United States assigns several powers to the president, including the power to veto or sign legislation, convene or adjourn Congress and command the armed forces. The U.S. President also nominates ... More »

Of the 47 men who have served as vice president of the United States, 14 went on to serve as president as well. This includes such notable figures as John Adams, Thomas Jefferson, Theodore Roosevelt and Harry Truman. More » History Modern History US History

Some of the worst U.S. presidents in history include Andrew Johnson and Millard Fillmore, according to a U.S. News and World Report analysis of five polls. Richard Nixon and George W. Bush were two other unpopular presid... More »

The worst five presidents include James Buchanan, Warren G. Harding, Andrew Johnson, Franklin Pierce and Millard Fillmore, according to an analysis of five major presidential polls by U.S. News and World Report. Buchanan... More »

According to the 2010 Siena College Research Institute's survey of 238 presidential scholars, Andrew Johnson is the worst president in American history. Also at the bottom of the poll, but just slightly higher than Johns... More »