CNN

McCain is campaigning in Pennsylvania Sunday.

(CNN) – Sen. John McCain on Sunday told supporters that he and Gov. Sarah Palin would "shake up Washington" with a win in Tuesday's presidential election, despite national polls showing them trailing Sen. Barack Obama's ticket.

"I want to repeat to you one more time, my friends - we're going to win, and we're going to bring real change to Washington," he said at a rally in Wallingford, Pennsylvania.

"With your help, we can win. ... We need a new direction, and we have to fight for it," McCain said, urging voters to volunteer in the final hours of campaigning.

"Two days, two days to victory," he said to roaring applause.