IT'S NOT JUST ELVIS AND NIXON: We don't normally link to Talking Points Memo around here, but when they do a slideshow of politicians' often-awkward encounters with musicians, we feel obligated to do so. Michael Jackson staring at Ronald Reagan! "Sen. Arlen Specter (R-PA) and James Brown at the 90th birthday party for Sen. Strom Thurmond (R-SC)!" Paul Simon (in a very odd leather ensemble) chatting with Harry Reid! Salt-N-Pepa, Michael Bolton, and Jerry Nadler!