'Vindictive': Democrat in tight Senate race blasted by GOP rival for swipe at McDonald's after Trump visit

GOP Pennsylvania Senate candidate Dave McCormick slammed his opponent, incumbent Sen. Bob Casey, D-Pa., for "retaliating against McDonald's" after former President Trump visited a location of the fast-food company in the Keystone State while on the campaign trail. 

A trio of Senate Democrats - Casey, Massachusetts Sen. Elizabeth Warren and Oregon Sen. Ron Wyden - on Monday issued a letter to the CEO of McDonald's, castigating the company for reported price gouging, just one day after Trump worked the fryer at a franchise of the fast-food chain during a campaign event in Feasterville, Pennsylvania. 

The trio's letter accused the business of inflating prices on consumers to grow profits, sparking McCormick to slam Casey for using "vindictive pressure tactics, simply because he doesn't like Donald Trump."

"After President Trump's wildly popular visit to the local Feasterville McDonald's franchise, Bob Casey has stooped to a new low by retaliating against McDonald's. This is just the latest in a string of anti-business attacks by Casey on Pennsylvania small businesses and employees. Casey is a liberal, partisan, career politician who knows his family dynasty is coming to an end, so he resorts to a vindictive pressure tactic, simply because he doesn't like Donald Trump," McCormick told Fox News Digital. 

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The senators' letter, which did not cite Trump, was sent one day after the former president's visit to a McDonald's in Casey's home state of Pennsylvania on Sunday. 

"While McDonald's is not the only fast food restaurant that has increased prices significantly in recent years, its dominant market position as the largest fast food chain in the United States has an outsize impact on American consumers," the trio of senators wrote in their letter. "While working families are trying to make ends meet, McDonald's and its corporate counterparts have continued to grow their profits."