Republicans have begun to unleash tens of thousands of poll watchers for the election, an operation that comes after months of recruitment efforts and some controversy and legal disputes.

The Republican National Committee has started deploying its poll watchers to stand hawk-eyed around voting and ballot-counting centers and report problems to hotlines. While long a pillar of the voting process for both major political parties, the Right’s poll-watching efforts have focused on seeking out instances of possible voter fraud.