PHILADELPHIA — Republican Senate candidate Dave McCormick defended Tesla CEO Elon Musk on Wednesday over a cash sweepstakes that legal experts say falls in a gray area of federal election law.

Since Saturday, Musk has been handing out $1 million checks to randomly drawn registered voters who sign a petition in support of the Constitution. The giveaway, which began in Pennsylvania, is part of a larger effort by Musk to boost swing state turnout for former President Donald Trump.