You don't understad this much. Presidents improve their support by leading the people - for better or worse.
Bush started out as an insecure president who peple said couldn 't dare do govern in any way but pandering to the center, avoiding going to the right and alienating them after a very close election he really lost, and his ratings were low and declining as people said what is he about and predicted a bad loss for re-election - but with 9/11 and his hard turn to the right, his ratings went way up. They eventually declined because they were such bad policies, but the point is they went up as he led away from the center. Same with Reagan.
FDR on the other side didn't have high ratings by governing to the center but by leading the people left.
Few 'great presidents' are remembered for pandering to the other side, the middle. You are simply making the mistake of wanting the policies you agree with to be the ones he should do, so you say this.
If Obama could pass a really big medical reform - like medicare for all, far more left than the current one - he'd get big political points, it terrifies Republicans, hence their blocking everything desparately.
You didn't understand the commentary. People want the president to do what the government is for - rotect them not only from the government itself, the right-wing bogeyman, but powerful private tyranny.
Oh, and Lothar, on who has a clue about how for the DNC to win, you attack me with a comparison to Howard Dean, saying he can't win.
Who was the chairman of the DNC who led the Democrats back to power after a Republican decade? I'd say you are the one we're luck is not the DNC chair.
Bush had a high popularity rating ONLY because of 9/11 and nothing else.
It wasn't because he shifted away from the center to the extreme right.
Abraham Lincoln, Teddy Roosevelt, Dwight Eisenhower, JFK, and Bill Clinton are remembered perfectly fine and they were all centrists of their respective political parties.
Last time I checked, Howard Dean didn't win the presidency OR Democratic nomination in 2004.
The Democrats who won in 2008 were either centrists or conservative Democrats.
http://en.wikipedia.org/wiki/United_States_Senate_elections,_2008
The only liberal on that list is Al Franken and possibly Jeff Merkley. Everyone else who gained a previous GOP seat in 2008 is either a centrist or a conservative Democrat.
You're also forgetting one important fact.
The US Senate is not based on population, unlike the US House.
Liberals are only guaranteed to win ~20 seats. Everyone else who wins the remaining seats will either be a centrist or a conservative Democrat.
If the DNC decides to follow your political strategy of shifting to the extreme left as you suggested, there won't ever be any Democrat elected in the Senate from Kansas, Oklahoma, Texas, Idaho, Wyoming, Idaho, Alabama, Mississippi, Georgia, South Carolina, and Utah. All the current centrist and conservative Democrats in Nebraska, Louisana, Indiana, New Hampshire, Virginia, Arkansas, Nevada, Colorado, Montana, South Dakota, North Dakota, Missouri, North Carolina, and Florida would lose their jobs to Republicans.
Lothar's list of centrists and conservative Senate Democrats:
Max Baucus
Kent Conrad
Bob Casey
and everyone else on this list (http://en.wikipedia.org/wiki/Moderate_Dems_Working_Group)
Of course knowing you, you'd consider them all to be corporatists.