His son Rand's campaign for Senate in Kentucky is going better than anyone could have expected -- every Kentuckian I met at the National Tea Party Convention backed him -- but Rep. Ron Paul (R-Texas) is drawing three primary opponents for his own re-election bid. Ironically, all three are from the Tea Party movement, which, as reporter Tom Benning points out, would be hard to imagine without the energy stirred up by Paul's 2008 presidential bid.

Tea Party associations aside, many of the challengers' criticisms echo concerns of Paul's past opponents: that he is too focused on his national ambitions; that his views are too extreme; that he doesn't support the wars in Iraq and Afghanistan; that he votes "no" on everything, including federal aid for his district after Hurricane Ike.