Joe Lieberman to Host Fundraiser for Harry Reid

The event will be Sunday at the Greenwich, Conn., home of venture capitalist Dan Ciporin and his wife, Jill, The Connecticut Post reported. The invitation suggests a minimum donation of $1,000 per person.

The fact that Lieberman would help his former party is a surprise, because he and Reid have been occasionally at odds since the Connecticut senator bolted the Democratic Party in 2006. Earlier this year Reid accused Lieberman, who still caucuses with the Democrats, of double-crossing him during negotiations over health care reform.

Connecticut's top Democrat said the last time she saw Lieberman at a party event was for a fundraiser around the time of President Obama's inauguration.

"If they're friends, he could be helping a friend. I don't know, though," Nancy DiNardo, the state's Democratic Party chairwoman, told the Post.

Reid is facing a tough fight in his race for a fifth term. A recent Rasmussen Reports poll found his support stuck in the 39 percent to 41 percent range when matched against three Republican contenders, and all of them led him by margins of 7 to 15 points.