Catherine Cortez Masto has been sworn in to the U.S. Senate, becoming Nevada's first female in the upper chamber of Congress and the nation's first Latina senator.
Spokesman Stewart Boss said the Democratic former Nevada state attorney general was joined for the ceremony in Washington by her husband, Paul Masto, and other family members.
Cortez Masto defeated former Republican U.S. Rep. Joe Heck in November to replace Harry Reid, who retired after 34 years in Congress including 10 years as Democratic party leader.
In a statement, Cortez Masto says she intends to represent working families, fight discrimination, and focus on issues including immigration, women's health and rights, education and retirement security.
She says she also wants to end the use of "secret unlimited money" in politics.
