Sen. Scott Brown yesterday warned the Obama administration against using the “nuclear option” of ramming through Congress a revised $1 trillion health-care bill outlined yesterday by the White House. The administration unveiled what’s already being called “Obamacare II” - a mix of already approved House and Senate health-care legislation aimed at expanding coverage for 31 million Americans. Obama’s plan also includes caps on excessive insurance-premium increases, similar to measures Gov. Deval Patrick proposed two weeks ago in Massachusetts. A spokesman for Brown, whose dramatic Senate victory last month halted Capitol Hill momentum for health-care reform, said Democrats better not try...