Congressman Paul Gosar's brother explains his call for his brother's removal: "What am I supposed to do as an American?"

Representative Paul Gosar is facing criticism from unlikely sources – several of his own family members.

Two of the Congressman's siblings, Dave Gosar and his sister Jennifer, called for their brother to be removed from office in an op-ed published on NBC News over the weekend. The Arizona Republican was first elected to office in 2010. Dave Gosar told CBSN's Elaine Quijano in an interview Wednesday evening that he started to notice "unhinged behavior" from his brother at the end of former President Obama's second term.