Seth Moulton announces 2020 bid

Representative Seth Moulton announced Monday that he is running for president, vowing to engage young people and military veterans and becoming the third Massachusetts politician to throw a hat into the 2020 ring.

An Iraq veteran who led an unsuccessful effort to oust Nancy Pelosi from the House leadership last year, the 40-year-old Moulton has said he plans to run a campaign focused on national security and defense issues, which his campaign argues will make him a foil to President Donald Trump. Moulton was elected to Congress in 2014, after...