Campaign ads

"How dirty will Obama's allies get?" the ad asks.

Sen. Rand Paul (R-Ky.) said Wednesday he might continue to support a controversial gun-owners’ rights group despite taking heat from from Republican colleagues.

Paul recently signed a fundraising letter for the National Association for Gun Rights, which has run television and radio ads accusing Sen. Susan Collins (R-Maine) of teaming up with liberal Democrats to push gun-control legislation.

Paul distanced himself from the group, but said he might continue to help with its fundraising.

“I have signed fundraising letters for them. I don’t have a connection with the group. It’s illegal for me to have a direct connection with the group or talk about what ads they run or not,” said Paul. “I can make a decision in the future over whether I’ll continue to do it, and I haven’t come to a conclusion or thought that through yet.”

A group backed by New York City Mayor Michael Bloomberg (I) is up with TV ads slamming Sen. Marco Rubio (R-Fla.) for his opposition to expanding background checks on gun purchasers.

Democrat Sheldon Whitehouse chastised administration officials on Tuesday for failing to enforce campaign finance laws during the 2012 election.

Democrat Elizabeth Colbert Busch is up with her first ad of the general election, a spot that touts her independence and strikes a fiscally conservative note.

"I'm Elizabeth Colbert Busch, and as a single mom raising three young children, I had to be independent and do what’s right for them. Now, I'm going to take that lesson to Congress," she says in the spot.

The ad focuses on Sanford's term-limits pledge while he was in the House and his alleged misuse of taxpayer money.

The Republican National Committee (RNC) released a new Web ad Wednesday slamming President Obama over a planned trip to California to raise money for House Democrats.

The president will head to San Francisco on Wednesday evening after a stop in Colorado, where he plans to hold an event to rally support for congressional action on new gun control laws. In California, Obama will attend a $5,000-per-person cocktail reception and a $32,500-per-person dinner, with proceeds from both benefiting the Democratic Congressional Campaign Committee.

The Democratic Congressional Campaign Committee rips Rep. Paul Ryan's (R-Wis.) budget as "Robin Hood in reverse" in a new Web video.

The video compiles news clips of people criticizing the plan, including one who calls the plan "Robin Hood in reverse," and lists many of the cuts that the plan includes while accusing Ryan of wanting tax cuts for wealthier Americans.

Rep. Virginia Foxx (R-N.C.) on Thursday reintroduced legislation that would prevent intrusive political phone calls, or robo-calls, from being made to anyone signed up to the national "Do Not Call" registry.

The Robo Calls Off Phones (Robo COP) Act, H.R. 1315, is meant to let people opt out of what Foxx calls a "bothersome campaign-season interruption."

An group opposing immigration reform is airing ads in Arizona targeting Sen. John McCain (R-Ariz.) for his efforts to help pass a bipartisan immigration deal.