President Joe Biden on Monday received a Pfizer COVID-19 booster dose on camera to lobby support for the rollout of the third dose, while saying he’s traveling to Chicago to call on private employers to mandate vaccines. “Boosters are important, but the most important thing we need to do is get more people vaccinated,” he said in remarks a the White House. Biden also said that he will travel to Chicago soon to make a speech calling on private businesses to mandate vaccinations for employees. The president added that he is “moving forward with vaccination requirements wherever I can,” but he urged businesses to establish their own vaccine mandates. “On Wednesday I’ll be traveling to Chicago to talk about why it’s so important that more businesses are instituting their own vaccine requirements,” he said, before getting the booster dose. Several weeks ago, Biden announced that he would issue an order …