Former Rep. Beto O'Rourke (D-TX) made himself a household name when he proposed a "mandatory buyback" of all AR-15s and AK-47s. He has continually pushed this so-called "plan" at various debates and during most media interviews. While talking with CBS News on Friday, Beto was asked, point blank, how he expects to fund his mandatory buyback program, should it become a reality. After all, AR-15s are the most common rifle in America. Assuming every single gun owner in American decided to comply – which is highly unlikely – he would need to come up with billions of dollars to pay...