A proposal to raise billions of dollars by taxing businesses and higher-income Chicago residents, released just three days into Mayor Brandon Johnson's new term, spotlights what's expected to be a tension point for the new mayor, as progressive allies who helped him win office seek to push him to the left, beyond the ground his administration has staked out. But Ald. Brian Hopkins, 2nd, who endorsed Johnson’s opponent Paul Vallas in the election, said, “Not a single one of those proposals would gain 26 votes if the vote were held today.”