He had 30 minutes to ask Sotomayor about her qualifications during the hearings. Guess what his focus was? From Mother Jones:
In addition to his hardline opposition to immigration and the allegations of racism, Sessions is known for unsuccessfully prosecuting three civil rights activists for voter fraud. The Trump team seems to be trying to tamp down questions about Sessions’ racial views to ease his confirmation. But it’s clear from his own questioning of Sotomayor that Sessions thinks the issue of racial bias is worth serious interrogation during confirmation hearings.