Joe the Plumber to endorse Angle; Tea Party Express plans TV and radio ads for the candidate

What's Joe the Plumber been up to lately besides unclogging a few sinks?

The Ohio man who played a role in the 2008 president election is getting ready to endorse Sharron Angle in the U.S. Senate race in Las Vegas on Friday.

The latest conservative brandname endorsement for Angle in the Republican primary comes as the Tea Party Express sets a $300,000 to $500,000 target for raising money to pay for TV and radio ads in Nevada to support the former Reno Assemblywoman's GOP candidacy, according to a spokesman for the group.

"We've already spent $165,000 in ads and our target is $300,000 to $500,000 in the next month," Tea Party Express spoksman Levi Russell told the Review-Journal.

It's unclear how much the ads will help Angle ahead of the June 8 primary despite the national endorsement from the Tea Party Express and other conservative groups. Polls continue to show Angle trailing GOP front-runner Sue Lowden, a former state senator and Las Vegas casino executive, and Las Vegas businessman Danny Tarkanian.

Those same surveys show that all three top GOP contenders could beat the Democratic incumbent, Sen. Harry Reid, if the general election were held today.

The Tea Party Express is holding a news conference in Las Vegas on Friday to reveal the endorsement from Joe "the plumber" Wurzelbacher, according to Russell.

Russell said Wurzelbacher made a video about why he like Angle, who has a strict no taxes record from her days in the Nevada Legislature.

Joe the Plumber gained fame during the 2008 presidential election when he questioned then-Democratic candidate Barack Obama about his small business tax policy during a campaign stop in Ohio. John McCain's GOP presidential campaign then used Wurzelbacher on the campaign trail as a symbol of middle-class American angst.