After a year as a Washington state senator, Michael Baumgartner, 35, is looking for his next job: the U.S. Senate seat held by Democrat Maria Cantwell. He's the only Republican running so far, but the GOP has yet to fully embrace him.

For most Republican candidates facing tough primaries this year, the rule of thumb has been to stay neutral in the presidential race, diplomatically stressing a desire to beat President Barack Obama without burdening themselves with the risk of an endorsement.

Visiting Sheboygan as part of local labor's annual kickoff, U.S. Senate candidate Tammy Baldwin said Saturday she would be an advocate for the middle class if elected.  Baldwin, a Democratic U.S. representative, is among those seeking to fill the well-worn shoes of U.S. Sen. Herb Kohl, who is not seeking re-election this year.