By Alexandra Alper WASHINGTON (Reuters) – Twenty internet providers, including Verizon, Comcast and AT&T, have committed to cutting prices or increasing internet speeds for millions of lower-income U.S. families, President Joe Biden said on Monday. “This is a case where big business stepped up,” said Biden, who was joined by Vice President Kamala Harris in the White House Rose Garden to announce the plan along with executives from companies that provide internet services. The commitments are part of the Affordable Connectivity Program (ACP), part of an infrastructure law passed by Congress wit…