Texas Attorney General Ken Paxton (R) just announced he'll campaign for the U.S. Senate on island in the Mediterranean Sea, according to the gleeful opponent who caught him in serious political blunder.State Rep. James Talarico (D) — the Republican's opponent in the race to claim Sen. John Cornyn's soon-to-be-vacant seat — took to X on Sunday to correct a campaign announcement that Paxton would join Sen. Ted Cruz (R-TX) for a campaign event in "…