Democratic Field in 2012 with a Republican Incumbent

[The Lord Marbury]

Okay let's say for a moment that Gore is able to win over Bush in 2000. 9/11 happens like OTL and Gore is narrowly relected in 2004 against McCain with his status as a wartime president and the capture of Bin Laden in 2003 due to a much more extensive American effort in Afghanistan. He doesn't go into Iraq and he preforms signifacntly better than Bush on issues like Katrina with a much quicker response.

However due to voter fatigue with the Democrats in 2008 since they have been in office for 14 years, the Democratic ticket of Hillary Clinton/John Edwards is handily defeated by the Republican ticket of Jeb Bush/Tom Tancredo. The financial crisis still happens, however with Gore in office it is delayed to mid 2009 when Bush has already entered office. The Democrats make significant gains in the 2010 midterms, on par with the Republican gains that happened in OTL. Come 2012 unemployment is at 11%, several states like Texas are on the brink of going bankrupt, and President Bush's approvals are in the mid 30s.

Now we arrive at the 2012 election, and my question is which Democrats would be running for the nomination, who would take it home, and by how big of a margin would they win? Keep in mind that Barack Obama is still an unknown Senator from Illinois who never gained any prominence on the national scene due to not making his speech at the 2004 Democratic National Convention, Hillary is the candidate who lost the 2008 election, and Edwards is still the guy who cheated on his dying wife.