From the Washington Post online:

A request to the Treasury Department for comment about the discrepancy was not returned. Democrats are upset that the Trump administration isn’t doing more to help ensure that as many Americans as possible get these payments during this national health emergency.

Thirty-four senators sent the White House a letter Wednesday asking why the Trump administration is placing this “significant burden” on senior citizens and the disabled. Members of the House are also speaking out.

“My colleagues and I strongly urge Treasury Secretary [Steven] Mnuchin and Social Security Administrator [Andrew] Saul to find a solution that will allow vulnerable groups to receive these funds automatically, without needing to file an additional return," said Rep. Richard E. Neal (D-Mass.), chairman of the House Ways and Means Committee.