Donald Trump Jr.-backed GrabAGun's shares slipped 22% on Thursday, deepening their post-debut slide and highlighting the degree of investor scrutiny even newly listed companies with high-profile backers are being subjected to.

The business is the latest example of President Donald Trump’s family and allies backing companies related to conservative political causes

Jr. and Omeed Malik rang the opening bell at the New York Stock Exchange as renegades. They had just turned PublicSquare, a Yelp-like directory of con