The congressional nominating caucus, an early system for choosing presidential candidates, was still used despite its growing unpopularity. Tyler tried to convince the lower house to endorse the caucus system and choose William H. Crawford as the Democratic-Republican candidate. Crawford captured the legislature's support, but Tyler's proposal was defeated. His most enduring effort in this second legislative tenure was saving the College of William and Mary, which risked closure from waning enrollment. Rather than move it from rural Williamsburg to the more populated capital at Richmond, as some suggested, Tyler proposed administrative and financial reforms. These were passed into law and were successful; by 1840 the school achieved its highest enrollment.[30]

An engraving of Tyler in his mid-thirties (c. 1826) as Governor of Virginia
Tyler's political fortunes were growing; he was considered as a possible candidate in the legislative deliberation for the 1824 U.S. Senate election.[31] He was nominated in December 1825 for governor of Virginia, a position which was then appointed by the legislature. Tyler was elected 131–81 over John Floyd. The office of governor was powerless under the original Virginia Constitution (1776–1830), lacking even veto authority. 