CREDIT: AP/Alex Brandon Rep. Steve King (R-IA) floated the possibility of shutting down the government on Wednesday if President Obama issues an executive action granting deportation relief to more undocumented immigrants. King’s comments come just one day after Sen. Marco Rubio (R-FL) suggested that Republicans in the Senate use “funding mechanisms to address this issue.” “If the president wields his pen and commits that unconstitutional act to legalize millions, I think that becomes something that is nearly political nuclear,” King said in remarks before the Westside Conservative Breakfast Club in Urbandale, Iowa, adding that “all bets are off” on passing a measure to keep the government running past October.