The president said such an outcome was unlikely, describing Iran as exhausted from the damage it had suffered and eager to speak with the United States.
A line stretched around the block to honor State Representative Melissa Hortman, her husband and their dog, who were killed in an attack that officials have called a political assassination.
The sweeping measure Senate Republican leaders hope to push through has many unpopular elements that they despise. But they face a political reckoning on taxes and the scorn of the president if they fail to pass it.
Mr. Morris, a founder of a waste and recycling business, describes himself as the only political outsider in the field and an unwavering supporter of President Trump.