The NRA has faced fresh scrutiny from congressional investigators about its finances and ties to Alexander Torshin, one of the 17 prominent Russian government officials the US Treasury Department recently slapped with sanctions. The gun-rights group has said it is reexamining its relationship with Torshin, who is a lifetime NRA member, in the wake of the sanctions.

The renewed attention has highlighted the close-knit if sometimes uneasy alliance between top NRA officials and Torshin — a relationship that ensnared members of Trump’s team during the presidential campaign, inviting further congressional scrutiny.

Those inquiries could shed light on the tightly held fundraising practices and political activities of the NRA. The political powerhouse shelled out more than $30 million in 2016 to back Donald Trump’s candidacy — more than it spent on 2008 and 2012 political races combined, according to the Center for Responsive Politics. Vice President Mike Pence is slated to speak at the National Rifle Association’s annual convention in Dallas next Friday, an official told CNN.