2015 in the United States

== Incumbents == === Federal government === President: Barack Obama (D-Illinois) Vice President: Joe Biden (D-Delaware) Chief Justice: John Roberts (Maryland) Speaker of the House of Representatives: John Boehner (R-Ohio) (until October 29) Paul Ryan (R-Wisconsin) (starting October 29) Senate Majority Leader: Harry Reid (D-Nevada) (until January 3) Mitch McConnell (R-Kentucky) (starting January 3) Congress: 113th (until January 3), 114th (starting January 3) ==== State governments ==== == Events == === January === January 1 New laws that go into effect on January 1: Under Provisions of the Patient Protection and Affordable Care Act, The Centers for Medicare and Medicaid Services begins using the Medicare fee schedule to give larger payments to physicians who provide high-quality care compared with cost. California's affirmative consent law goes into effect.

Source: Wikipedia — 2015 in the United States (CC BY-SA 4.0)