Dealmakers and business leaders should not expect Donald Trump during his second presidential administration to retreat from aggressive antitrust enforcement, but they may see relief from some of the Biden administration enforcement tactics they found especially aggravating.

While Trump's rhetoric about excessive regulation and government waste might seem to foreshadow a more hands-off approach to business competition, the Department of Justice and the Federal Trade Commission's antitrust record during his first four years in the White House suggests otherwise, legal observers said.