MADISON, Wis. (AP)- Republican U.S. Sen. Ron Johnson says he doesn’t support banning abortions as early as six or eight weeks into a pregnancy, and would prefer that states have the power to determine whether abortion should be legal. Johnson commented on abortion during a news conference with reporters during the Wisconsin Republican convention on Saturday. Johnson says he supports a national law banning abortions after 21 weeks. Wisconsin has a 20-week ban.