Biden has supported abortion rights, same-sex marriage, the "Roe v. Wade" decision, and since 2019 has supported repealing the Hyde Amendment (a rule barring the use of federal funds to pay for abortion). He opposes drilling for oil in the Arctic National Wildlife Refuge and supports governmental funding to find new energy sources. As a senator, he forged deep relationships with police groups and was a chief proponent of a Police Officer's Bill of Rights measure that police unions supported but police chiefs opposed. As vice president, he served as a White House liaison to police.