Rep. Paul Ryan has been acting more like a potential 2016 presidential candidate lately, planning a trip to New Hampshire and inking a book deal, but he will skip a Washington fundraiser Tuesday for Iowa Gov. Terry Branstad.

Instead, Ryan, R-Wis., the House Budget Committee chairman and Mitt Romney's 2012 vice presidential running mate, will head to Georgia to help raise money for the re-election campaigns of Republican Reps. Lynn Westmoreland and Tom Graves, a Ryan spokesman said.

Graves is one of the congressmen leading the charge on the effort to defund Obamacare in the continuing resolution needed to fund the government.

Ryan is listed as a sponsor of the Branstad fundraiser he's skipping, but he will headline the governor's high-profile birthday bash in Iowa in November. Ryan will also travel next month to New Hampshire, another early-primary state, to raise money for former Rep. Frank Guinta. And Ryan is slated to publish a profile-raising book in August 2014 called "Where Do We Go from Here?" -- ideal timing should he run for president.

Branstad's event Tuesday will be crowded with other potential Republican presidential contenders, including Wisconsin Gov. Scott Walker and Sens. Ted Cruz, Rand Paul and Marco Rubio. New Jersey Gov. Chris Christie and Louisiana Gov. Bobby Jindal are, like Ryan, sponsoring the event but not planning to attend.