Wall Street pushed back hard on Friday against a report that congressional Republicans are weighing a plan to severely limit the amount of money Americans can contribute to their 401(k)s. The Capitol Hill lawmakers, searching for ways to pay for President TrumpÂ’s broad proposed tax cuts, are eyeing a $2,400 cap on pre-tax contributions to 401(k) plans, used by millions of US workers to save for retirement. Currently, the pre-tax limit for such contributions is $18,000 a year. Contributions to 401(k)s are tax-deferred, which means that the government wonÂ’t be able to get its cut until retirees start withdrawing money...