Could a truly honest politician become president?

[SoutherDem]

6. There is truth, then there is truth but then again you have truth.

Short answer NO.
Long answer Yes but no.
Confused yet?
First you have truth. Some politicians tell the truth as noted Mondale said "I will raise taxes" and he lost. The American people didn't want the truth they wanted a magical answer thus Reagan's Trickle Down Economics.
Second, you have truth. Some politicians have a hope that if they are reasonable, willing to give and take, then every elected official will be equally reasonable. When Obama made some of his promises I think he was telling the truth as he knew it, but he was not anticipating completely obstructionist Republicans and Democrats who couldn't understand to put their personal wants aside for the greater good. His truth was only true as far as it was allowed to be by outside factors.
But then you have truth. Some politicians say what they need to for the moment at hand. I present you Mitt Romney the only person running for office who has at one time or another held every possible position one every possible issue. He's truth is determined by the mood of the moment by who he is trying to impress at that given moment. His truth is empty.