Business executives expect tax reform to happen but will cut hiring and investment plans if Congress and President Trump fail to deliver it, JPMorgan Chase CEO Jamie Dimon said Tuesday.

Although business groups still expect that the Trump administration and Congress will coalesce around a plan, “the urgency for tax reform cannot be overstated,” Dimon said on a media call Tuesday for the Business Roundtable, a group of big business CEOs of which he is the chairman.