An even 30: In the last undecided House race, a Democrat knocked off a Republican incumbent in Texas in a run-off yesterday. The Democrat, Ciro Rodriguez, had lost a primary earlier this year to a DINO, Henry Cuellar, but got another chance after the Supreme Court threw out part of the 2003 Texas gerrymander. Henry Bonilla, the Republican (and the only non-Cuban Hispanic in the GOP caucus), saw his election-night percentage shrink from 48% to just over 45% last night, an ominous sign for the new minority party.