the polls show that only sanders and biden, these two guys are at double digits, and it's far from a slum dunk for biden in this race. his entire legislative past as a senator is slowly being relitigated in the press. for a new generation of voters, it's the first they've heard. and his candidacy might run directly into a party-wide generational shift happening at the very same time. and to that end, beto o'rourke is headed to iowa on thursday. he has several days of events planned in the early caucus state. nbc news reports he plans to announce his decision by the end of the month. "washington post" sums up the impending beto/biden matchup this way, quote, the popular former vice president and the charismatic former texas congressman share one key characteristic, a more centrist brand of politics that could appeal to an untapped portion of