Not since 1936 has a president won reelection with expanded majorities in the House and Senate.

From NRO

. Smart Republicans, however, will know that they cannot afford hubris. They dodged a bullet. They need to promote a conservative agenda that builds on the Republicans’ strength on national security and moral values while expanding their base. Bush still has to win the war on terrorism (beating the insurgency in Iraq is a profound challenge), reform entitlements, and get conservative judges through the Senate. But since his victory advances all of those goals immeasurably, he can take a moment to savor it, as we will.