Senate Minority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellSenators near deal on sexual harassment policy change Blankenship third-party bid worries Senate GOP Overnight Finance: Trump signs repeal of auto-loan policy | Justices uphold contracts that bar employee class-action suits | US, China trade war 'on hold' MORE (R-Ky.) suggested on Sunday that an Orlando jury's surprising decision to acquit Casey Anthony of charges of murdering her two-year-old daughter demonstrates that it could be difficult to convict accused terrorists in civilian courts.

"These are not American citizens," McConnell said, referring to accused terrorists. "We just found with the Caylee Anthony case how difficult it is to get a conviction in a U.S. court."

"I don't think a foreigner is entitled to all the protections in the Bill of Rights," McConnell told Fox News Sunday, according to the New York Post. "They should not be in U.S. courts and before military commissions."

Anthony was acquitted on Tuesday of the murder charges against her but was convicted on a number of smaller charges stemming from inconsistencies she told told authorities regarding her daughter's disappearance in 2008.

McConnell and several other Republicans sounded off from the Senate floor last week against the White House's insistence that some suspected terrorists be tried in civilian courts rather than in military tribunals.