WASHINGTON — ZTE Corp. 763, -4.61% once again appeared to teeter on the brink of demise Tuesday as senior Republican senators signaled that President Donald Trump was unlikely to block a congressional effort to derail a deal he brokered to resuscitate the Chinese telecommunications giant.

The president hasn’t issued tweets urging Republicans to stand down, and lawmakers detect no backlash building within Congress against the move to unravel the White House agreement.