Saturday morning, from 10 a.m. to 12 noon Eastern, join Politics Nation on XM Radio's POTUS '08, when we'll tackle the week in politics. Listen free here (link about half-way down the page) as:

-- A new study from the Family Research Council suggests same-sex marriage bans could once again drive voter turnout and give Republicans a reason to hope in November. But, like immigration, we debate whether gay marriage is an actual vote-moving issue.

-- Could John McCain and the RNC actually outspend Barack Obama? What happened to Barack Obama's hundred million-dollar month?

-- John Boehner is headed to the Arctic National Wildlife Refuge with ten Republican freshmen. WIth energy and gas prices climbing through the roof, have Republicans found their winning issue?

-- And, get this, we take your listener mail! We'll do our best to answer as many as possible, but ask away: Is there a kind of poll you want to know about? Is there an issue you think will play a major role in this year's election that's being overlooked? Email your questions to Politics Nation today, and tune in Saturday to hear our answers.

All that and a few surprises, we're sure, Saturday morning on Politics Nation, only on XM Radio's POTUS '08. Listen live, Saturday from 10 a.m. to noon Eastern and again at 6:00 p.m. Eastern.