One of the most basic ways in which a candidate can demonstrate the integrity voters are looking for is to build a record of standing up to corruption and waste - and doing so even when it appears in his or her own party, or on the part of his or her own allies or backers. This is not just a matter of honesty and prudence, but of toughness and courage. Let me offer a contrast between the two tickets on this issue - an Integrity Gap that Obama simply can't surmount and can only hope to obscure. If you look at the record of the McCain-Palin ticket and compare it to the Obama-Biden record in this regard, it really is no contest. I will start with the junior members of the two tickets. Governor Sarah Palin, in her short career, has fought many battles against her own party's entrenched interests; Senator Barack Obama, in a career of similar length and scope, has consistently looked the other way, and worse. Sen. Obama simply lacks the courage and the record of accomplishment of Gov. Palin. Today I will look at Gov. Palin's record; in Part II I will deal with Sen. Obama. Part III will deal with the senior members of the two tickets, Senator John McCain and Senator Joe Biden. [emphasis in original]
On the surface, Sarah Palin's career path looks much like Barack Obama's: both spent around a decade laboring in the vineyards of local politics before seeing their careers abruptly go up like a rocket all the way to the center of the national political stage. But look closer, and you will see all the difference in the world in the choices they made to get there.
Read it here. Article is long, with links to sources, but a good read if you want to know Gov. Palin's political history and the battles she fought, many against her own party, in fighting corruption and wasteful spending.