As they try to enact President Donald Trump’s agenda, congressional Republicans face the same political risk as a generation ago: that tying together tax cuts and spending cuts will backfire.

Republicans will attempt a tax and spending bill that will not require substantial budget cuts, but there may be serious math problems ahead.

The Senate could soon take the first step toward passing President Donald Trump‘s agenda as House Republicans struggle to reach a deal on budget cuts. Until now, Senate Republicans have been giving the House leeway to negotiate an all-encompassing bill that deals with tax reform alongside priorities such as the border and energy.