The Philadelphia District Attorney's office has filed a civil suit against Elon Musk and his pro-Trump America PAC, a week after he pledged to give $1 million a day to Pennsylvania voters who sign his petition to protect the First and Second Amendments.

Musk has heavily advertised the giveaway, and said his offer is limited to registered voters in Arizona, Georgia, Michigan, Nevada, North Carolina, Pennsylvania and Wisconsin. America PAC so far has given out $1 million prizes to 16 people and said the final prize will be awarded Nov. 5.