The 1972 New Hampshire Republican presidential primary was held on March 7, 1972, in
China and the Soviet Union. Nixon won the Granite State in a landslide, resulting in the withdrawal of McCloskey from the primaries (he promised to do so if he failed to reach >20% of the vote) and a clear path for the incumbent President to receive the Republican nomination.[1][2][3]
^New Hampshire. Dept. of State (1973). Manual for the General Court. University of New Hampshire Library. Concord, N.H. : Dept. of State. pp. 295, 306.