Democratic 2020 presidential hopeful Elizabeth Warren is expected to be joined at a town hall event in North Carolina on Thursday by Ayanna Pressley, the Massachusetts congresswoman who on Wednesday broke away from her Democratic “Squad” pack to support her home-state senator. The boost for Warren's candidacy comes as she has spent the week fending off attacks from former Vice President Joe Biden and other Democratic rivals -- and even from billionaires Bill Gates and Jamie Dimon. It also comes as Warren has seen a surge in the polls. The newest numbers show her surpassing Sen. Bernie Sanders -- the...