Cory Booker just took another step toward a run for president

WASHINGTON — U.S. Sen. Cory Booker, criticized for campaign contributions from Wall Street and the drug industry, has sworn off corporate political action committee donations as he ponders whether to seek a run for the White House. Booker, D-N.J., made the announcement in a Twitter post. He joined three other potential 2020 Democratic presidential candidates, U.S.…