President Joe Biden faces growing internal dissent within the Democratic Party, with reports of a heated exchange on a conference call where he lashed out at fellow Democrats questioning his viability for a second term. A letter circulating among Democrats criticizes plans for an early virtual roll call to confirm Biden’s nomination before the Democratic National Convention. Despite these challenges, Biden returned to the campaign trail, engaging with black and Latino voters in Las Vegas. Meanwhile, the Republican National Convention kicked off in Milwaukee, with former President Donald Trump set to announce his vice-presidential running mate. The RNC has heightened security measures following a recent assassination attempt on Trump.