LONDON (AP) — The British government’s plan to tighten its asylum system met sharp resistance Monday from inside its own party but was getting some support from political rivals in a sign of how divisive the immigration issue has become. Before Home Secretary Shabana Mahmood even released details of the sweeping plan to make the U.K. less attractive to asylum-seekers and migrants easier to remove she was trying to quell a backlash from center-left Labour Party backbenchers who accused her of