WAUKESHA, Wis. -- Wisconsin once again is the focus of the presidential campaign, with Republican candidate John McCain and his running mate Sarah Palin in the state.

They're appearing in Waukesha Thursday, and then Palin leaves for Ohio and McCain will be traveling to the Wausau area for a stop Thursday afternoon at the Central Wisconsin Airport in Mosinee.

Then McCain will be at a rally in La Crosse Friday morning.

The visit comes as a new poll shows Democrat Barack Obama with his biggest lead in Wisconsin since July.

The WISC-TV poll of likely voters shows Obama with a 10-point lead over McCain. The poll done by Research 2000 on Sunday and Monday showed Obama with 51 percent and McCain with 41 percent. The margin of error is listed as plus or minus four percentage points.

McCain Backers In Wis. Say They Don't Trust Polls

Supporters waiting in line to see McCain and his running mate Palin in Waukesha Thursday said they don't believe recent polls that show Obama leading by 10 points in Wisconsin.

Alicia Thorson, of Waukesha, said she thinks the polls are fixed. The mother of four said she doesn't trust what she called the "liberal media."

Thorson's 3-year-old and 7-year-old daughters were dressed like Palin outside the sports complex where McCain was to hold a noon town hall meeting.

Kristi Czaplewski said she doesn't believe the polls because "you can't believe anything you see on TV."

And Dave Zalar, 73, of Jefferson, said he believes the press is biased against McCain so he doesn't believe the polls either.