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Maintaining his passion for law, McCrary established an expertise in contested elections and laws pertaining to elections.<ref name=iowadictionarybio/> He published ''A Treatise on the American Law of Elections'' in 1875, which later underwent four editions.

Maintaining his passion for law, McCrary established an expertise in contested elections and laws pertaining to elections.<ref name=iowadictionarybio/> He published ''A Treatise on the American Law of Elections'' in 1875, which later underwent four editions.

During his House years, McCrary allied with the congressional [[Half-Breeds]],<ref>Welch, Robert E., Jr. (1971). [https://www.hup.harvard.edu/catalog.php?isbn=9780674436787 ''George Frisbie Hoar and the Half-Breed Republicans''], p. 91. ''Harvard University Press''.</ref> the loosely organized and more [[moderate]] wing of the Republican Party (in comparison to the pro-[[spoils system]] [[Stalwart]]s) which emphasized [[industry|industrial]] interests and protective [[tariff]]s in addition to supporting [[civil service system|civil service reform]].

During his House years, McCrary allied with the congressional [[Half-Breeds]],<ref>Welch, Robert E., Jr. (1971). [https://www.hup.harvard.edu/catalog.php?isbn=9780674436787 ''George Frisbie Hoar and the Half-Breed Republicans''], p. 91. ''Harvard University Press''.</ref> the loosely organized and more [[moderate]] wing of the Republican Party (in comparison to the pro-[[spoils system]] [[Stalwart]]s) which emphasized [[industry|industrial]] interests and protective [[tariff]]s in addition to supporting [[civil service system|civil service reform]].