Coolidge nominated 17 judges to the United States Courts of Appeals and 61 judges to the United States district courts. He appointed judges to various specialty courts as well, including Genevieve R. Cline, who became the first woman named to the federal judiciary when Coolidge placed her on the United States Customs Court in 1928.[173] Coolidge also signed the Judiciary Act of 1925 into law, allowing the Supreme Court more discretion over its workload.

1928 election
Main article: 1928 United States presidential election
0:28  Collection of video clips of President Coolidge
In the summer of 1927, Coolidge vacationed in the Black Hills of South Dakota, where he engaged in horseback riding and fly fishing and attended rodeos. He made Custer State Park his "summer White House". While on vacation, Coolidge surprisingly issued a terse statement that he would not seek a second full term as president: "I do not choose to run for President in 1928."[174] After allowing the reporters to take that in, Coolidge elaborated. "If I take another term, I will be in the White House till 1933 … Ten years in Washington is longer than any other man has had it – too long!