Joe Kennedy III files statement of candidacy ahead of possible Senate run

Rep. Joe Kennedy filed a statement of candidacy and a principal campaign committee for a 2020 U.S. Senate run on Monday. The move came less than two hours after the congressman posted on Facebook that he is considering a campaign against fellow Democrat Ed Markey, the incumbent.

Kennedy's office told CBS News that the congressman has still not made a decision on challenging Markey, and that the campaign committee was created to support Kennedy in his exploratory effort as he works towards a decision. So while Kennedy has not...