Two senators have introduced bipartisan legislation that would make it harder for online tech giants to make acquisitions that “harm competition and eliminate consumer choice,” according to the office of Sen. Amy Klobuchar (D-Minn.), one of the bill’s co-sponsors. Klobuchar and Sen. Tom Cotton (R-Ark.) on Nov. 5 jointly announced the unveiling of the Platform Competition and Opportunity Act, which would make it easier for the government to block deals it believes violate antitrust laws by requiring companies that have dominant market positions to prove that mergers don’t stifle competition. “We’re increasingly seeing companies choose to buy their rivals rather than compete,” Klobuchar said in a statement. “This bipartisan legislation will put an end to those anticompetitive acquisitions by making it more difficult for dominant digital platforms to eliminate their competitors and enhance the platform’s market power,” she added. Klobuchar and Cotton’s proposed bill would shift the burden in merger enforcement …