Representative Kennedy challenges fellow Democrat Markey for Senate seat

U.S. Representative Joseph Kennedy III - a member of the famed political dynasty - on Monday took steps to challenge fellow Democrat Edward Markey for his Massachusetts Senate seat, setting up a potentially spirited contest in the 2020 election season.Kennedy, the grandson of former Senator Robert Kennedy who was assassinated in 1968 while running for president, has served in the House of Representatives since 2013.Kennedy, 38, had been hinting at a possible run for the Senate and made his inten