The Anti-Masonic Party (also known as the Anti-Masonic Movement) was the first "third party" in the United States. It strongly opposed Freemasonry as a single-issue party, and later aspired to become a major party by expanding its platform and positions on other issues. After the negative views of Freemasonry among a large segment of the public began to wane in the late 1830s, most members of the Anti-Masonic Party joined the Whigs, the party most in line with its views on other issues. Although lasting only a decade, the Anti-Masonic Party introduced important innovations to American politics, such as nominating conventions and the adoption of party platforms.