Democratic Party June 28, 2023 2:35 pm 5 things to know about Marianne Williamson Self-help guru Marianne Williamson has pledged to tackle food insecurity and climate change. Here’s what you need to know about the Democratic presidential candidate. US & World Videos 0:36 President Biden calls Trump ‘unhinged' at Philly visit 0:35 Democratic Sen. Bob Casey, GOP hopeful Dave McCormick spar in debate for Pa. US Senate seat 3:38 How money given to political campaigns is used and why 2 women chose to contribute financially 2:05 President Biden will be in Philly; JD Vance will visit Lafayette Hill as both campaigns push for Pa. 2:27 Trump's Pennsylvania town hall becomes impromptu concert