WASHINGTON (Reuters) -The U.S. Senate on Tuesday voted to confirm Dr. Robert Califf as commissioner of the U.S. Food and Drug Administration after some senators had argued his ties to the pharmaceutical industry or views on birth control made him unfit for the role. Calif, 70, is a well-regarded cardiologist and researcher who takes the helm at the FDA for a second time over a year after the health regulator last had a permanent leader. His confirmation comes at a pivotal moment as the agency reviews vaccines and treatments for COVID-19. Califf previously served as FDA commissioner from Februa…