In 1961 , he was the Republican candidate for Mayor of New York City , but lost to Democrat Robert F. Wagner Jr . Lefkowitz was a delegate to the 1944 , 1948 , 1960 , and 1964 Republican National Conventions , and an alternate delegate to the 1956 Republican National Convention . He was a moderate or even liberal Republican and part of the Thomas E. Dewey and Nelson A. Rockefeller faction of the New York Republican Party
1956 Republican National Convention
1956 Republican National Convention
Louis J. Lefkowitz