The Brazilian Democratic Movement is a Brazilian political party. It is considered a "big tent party" and it is one of the parties with the greatest representation throughout the national territory, with the most numbers of senators, mayors and city councillors, always having formed a large part of the National Congress since 1988, and also has the largest number of affiliates, with 2,043,709 members as of July 2023.

The Federal Senate is the upper house of the National Congress of Brazil. When created under the Imperial Constitution in 1824, it was based on the House of Lords of the British Parliament, but since the Proclamation of the Republic in 1889 and under the first republican Constitution the Federal Senate has resembled the United States Senate.