Just as the Republican National Convention was set to begin on Monday, court filings in New York showed state Attorney General Letitia James had sought new material as part of a probe of the Trump Organization, Reuters reported. The filing said the attorney general is investigating President Trump’s use of “Statements of Financial Condition”—summaries of his assets and debts that are sent to lenders—and that the Trump Organization has been withholding information. The court papers ask a judge to compel the president’s son Eric Trump to submit to an interview as part of the investigation centering on the business President Donald Trump used as a platform to launch his presidential candidacy in 2015. At issue, in part, were allegations of assets being inflated to secure loans, according to Reuters.

The broadside came just weeks after AG James launched a massive legal assault on the National Rifle Association, suing to dissolve it for alleged fraud and abuse of its nonprofit status in service of cushy perks for top executives. In 2016, the NRA spent more than it ever had before in its efforts on behalf of Trump’s successful run at the White House.

Editor’s note: A previous version of the story misstated the nature of the new legal action against the Trump organization. We regret the error.