Some have compared Dubya to Hoover. Others to Truman. I think he's more like Nixon: spending all of his political capital successfully "Vietnamizing" Iraq and getting NO CREDIT WHATSOEVER for his liberal accomplishments - which are numerous, and which account for why Bush is so low in the polls. Bush is low in the polls because he pissed off conservatives without picking up ANY liberal support in return. He did this with signing CFR, signing NCLB, pushing Miers, pushing amnesty, signing DRUGS FOR SENIORS an the largest increases in domestic spending since LBJ.
Nixon also did a lot of liberal things and got ZERO CREDIT FOR IT: detente, arms control, the EPA, the CLEAN WATER/CLEAN AIR ACT, wage & price controls, opening China, bring all the troops home from Vietnam in 1973, ending the draft.
NIXON LIKE BUSH GOT ZERO CREDIT FROM THE LIBS.
McCain likewise lost because he got ZERO credit in the election for being a bi-partisan / GOP maverick who supported green taxes and AMNESTY, etc. SHIT: MCCAIN GOT CLOBBERED BY THE HISPANICS. (I don't know who are the bigger idiots: the Hispanics who didn't support their friend McCain or McCainiacs for thinking that the way to gain their support was to give the illegals amnesty.)
And IF Bush is more like Nixon, then of course Obama will be more Like Carter: an inept anti-American, anti-Israel, anti-defense-spending liberal who will somersault from misstep to misstep and make our enemies stronger.
Obama isn't like Bill Clinton or Reagan - who were both very experienced executives and very experienced politicians.
Obama isn't like Lincoln who was prescient. Obama was wrong about Iraq and the Surge - and all those close buddies he threw under the bus.
Obama isn't like FDR who was a consummate politician and experienced in DC and ALBANY and on the national scene for decades.
Obama is like Carter - but will probably be even worse and disappoint more people even more. Carter had at least once been in the military and once ran his own business and had been a governor.
In one respect Bush will be like Truman: In time a vast majority of Americans will regard his presidency will respect and thanks. Something we owe Nixon but which he will probably never receive.
REMEMBER THIS ABOUT NIXON: he only served 5 years. And did more good for the US And the world than Clinton did in 8. Or than Obama will ever do.
C'est la vie.