Here are the people presently considered the most capable of making a serious run.
As a result of the 2006 midterm elections, the Democratic Party is set to become the majority party in the House of Representatives as well as the effective majority party in the United States Senate when the 110th Congress convenes in 2007 (The Senate will consist of 49 Democrats, 49 Republicans and two Independents who will caucus with the Democratic Party). The Democrats had spent twelve successive years as the minority party in the House before the watershed 2006 mid-term elections. Part of the Democratic Party's electoral success can be attributed to running mostly conservative-leaning Democrats against at-risk Republican incumbents. The Democrats also went from controlling a minority of governorships to an expected majority. The number of seats held by party members likewise increased in various state legislatures, giving the Democrats control of a plurality of them nationwide. No opposition party challenger defeated any incumbent Democratic Governor, U.S. Senator, or U.S. Representative in the election.
Scandals involving lobbyist Jack Abramoff, former House Majority Leader Tom DeLay, the House GOP leadership's purported cover-up of the Mark Foley scandal, and Ohio governor Bob Taft gave the Democrats the opportunity of using corruption as an issue for the 2006 campaign. President Bush's slow response to the Hurricane Katrina disaster seemed to be an issue that highlighted conflicts in the emergency response system in many areas, including the local agencies. Public opinion on the war in Iraq continued its steady negative trend, and this, along with widespread sentiment among conservatives that the government had let spending get out of control, continued to drag President Bush's job approval ratings down to the lowest levels of his presidency.
The current President of the United States, George W. Bush, is a Republican. During the 109th Congress, the Republican Party was the majority party in the United States Senate and the House of Representatives. However, in the 2006 midterm elections, Republican incumbents were defeated and open seats were won by Democrats, as the Republicans lost control of both the House and the Senate. In the 110th Congress, the Republican Party will hold minority status in both the House of Representatives and the United States Senate. The two independents in the Senate have announced they will caucus with the Democrats giving them a 51-49 majority. Majority status in the House or Senate means the majority controls all the committees and controls the agenda, but does not guarantee success on any specific roll-call vote. The GOP will control 22 governorships (down from 28) and a minority of state legislatures in 2007.