A bipartisan group of 16 senators is urging Congress to take a tough stance on China policy ahead of this month’s summit between President Donald Trump and Chinese President Xi Jinping.

Sens. Chris Coons, a Delaware Democrat, and Pete Ricketts, a Nebraska Republican, introduced a resolution Thursday laying out what they describe as core U.S. priorities in dealing with China, including stronger military deterrence in the Indo-Pacific, protections against unfair trade practices and maintaining U.S. leadership in emerging tech.

The measure, while nonbinding, lays down a marker as the Trump administration prepares for the summit starting May 14: Many senators from both parties oppose concessions to China.

Xi is likely to press Trump to oppose Taiwanese independence. Taiwan’s deputy minister of foreign affairs, Francois Wu, told Bloomberg that he worried the self-governing island would be “on the menu” at the talks between Xi and Trump.

Experts have pointed to reversals, mixed signals and internal confusion about the administration’s China policy, charges the White House denies. Some Republicans have criticized Trump’s approach after his decision to allow the sale of powerful AI chips to China.

“In the run-up to next month’s U.S.-China summit, the United States Senate is sending a clear message: remember who Xi Jinping and the PRC are,” Coons, the Senate’s lead Democrat on the defense appropriations subcommittee, said in a statement. He cautioned the U.S. not to “give away the store in negotiations in exchange for fig leaves.”

“Beijing is trying to create a more aggressive, coercive, and lawless international landscape that harms the American people, and the United States cannot,” he said. “We must stand with our allies and partners and work with every tool of the U.S. government to combat these aggressive practices.”

The resolution may have strong chances of passing given the influential list of co-sponsors, which includes Senate Armed Services Chair Roger Wicker, and Sens. Jim Banks and Bernie Moreno, who are Trump allies. Democratic co-sponsors include Foreign Relations ranking member Sen. Jeanne Shaheen and seapower subcommittee ranking member Sen. Tim Kaine.

“Communist China is the greatest threat to the American way of life,” Ricketts said in a statement. ”Communist China actively threatens the rules-based system that has maintained peace and prosperity for over 80 years. We must deter Communist China. We must stand with our partner and allies that Beijing threatens.”

The resolution asserts China “has the intent and capacity to undermine the security, economic prosperity, and strategic interests of the United States.”

It also says China is carrying on coercive “gray zone” tactics that threaten Indo-Pacific countries, disrupt major shipping lanes such as the South China Sea and Taiwan Strait, and is building up to be able to alter Taiwan’s independent status by force.

The resolution notes that Beijing supports U.S. adversaries, including Iran, North Korea and Russia, including by sharing military technology.