Why did President Taft veto Arizona's statehood in 1911?

President Taft vetoed Arizona’s statehood in 1911 primarily due to objections related to the provision of the recall of judges in the Arizona State Constitution. This provision was controversial as it allowed voters to remove judges from office, which Taft and others viewed as a potential undermining of judicial independence and the principle of judicial stability. He believed that such a provision could jeopardize the impartiality of the judiciary, which is a critical component of a functioning democracy.

The other options, while they may touch on aspects of statehood and governance, did not play a central role in Taft's decision as much as the issue of judicial recall did. Financial concerns, federal regulations on land use, and population requirements were not the deciding factors in the context of his veto.