“Senator Schumer and Obama Administration let phone company ZTE flourish with no security checks,” he wrote. “I closed it down then let it reopen with high level security guarantees, change of management and board, must purchase U.S. parts and pay a $1.3 Billion fine.”

“Dems do nothing but complain and obstruct,” he added. “They made only bad deals (Iran) and their so-called Trade Deals are the laughing stock of the world!”

The deal would allow ZTE to once again begin doing business with American companies, including Qualcomm, the chip maker based in San Diego that is a primary ZTE supplier. The Chinese company was recently banned from buying American technology components for seven years as punishment for violating United States sanctions against Iran and North Korea, a penalty that industry analysts say threatened to put the company out of business within weeks.

[Catch up on what ZTE is, and why President Trump wants to help it.]

The collapse of ZTE would be an embarrassing outcome for China, and the company’s fate has become a hurdle in trade negotiations between the two countries. President Trump directed the Commerce Department to re-examine ZTE’s penalty based on a personal request from President Xi Jinping of China, setting off a fierce pushback from some of Mr. Trump’s national security advisers, as well as lawmakers from both parties.

Mr. Trump, however, has appeared unmoved by those concerns and has been pushing to reach some type of trade resolution with China, which has so far proved elusive. The administration has been seeking to cut a deal on ZTE in exchange for trade concessions from China, including purchases of American agriculture and energy products, people familiar with the discussions said. Wilbur Ross, the commerce secretary, is scheduled to travel to China on June 2 to begin another round of the talks with top Chinese officials.