US President Joe Biden on Tuesday blasted Russian President Vladimir Putin's stated plan to deploy nuclear weapons in neighboring Belarus, branding it "dangerous" talk.

"This is dangerous kind of talk and it's worrisome," Biden told reporters at the White House.

The Kremlin leader announced on Saturday that he was ordering the deployment of Russian tactical nuclear weapons in Belarus, run by fellow authoritarian leader Alexander Lukashenko as one of Russia's closest allies.

Washington has denounced the plan, which follows more than a year of Moscow's attempt to conquer pro-Western Ukraine -- a neighbor of both Russia and Belarus.

However, US officials say they have seen no sign of Russia actually moving nuclear weaponry.

"They haven't done that yet," Biden said.

Israel 'cannot continue down this road'

US President Joe Biden on Tuesday warned Israel it "cannot continue" pressing for deeply controversial judicial reforms -- now on hold -- which have prompted months of unrest and criticism among Western allies.

"Like many strong supporters of Israel I'm very concerned.... They cannot continue down this road, and I've sort of made that clear," Biden told reporters during a visit to North Carolina.

"Hopefully the prime minister (Benjamin Netanyahu) will act in a way that he will try to work out some genuine compromise, but that remains to be seen," Biden said, adding he was not considering inviting the Israeli leader to the White House, at least "not in the near term."

Arriving back in Washington, Biden repeated his concern over the situation in Israel, where Netanyahu has been accused by opponents of riding roughshod over Israeli democracy in an attempt to strengthen his own power.

Asked if Israel's democracy is at an inflection point -- a phrase Biden frequently uses to describe the danger facing democracies worldwide -- the US president said: "I don't know that they're at an inflection point but I think that's a difficult spot to be in and they've got to work it out."

He called for the controversial judiciary law to be dropped.

"I hope they walk away from it," he told reporters.

Campaign touting US economy kicked off

President Joe Biden launched a new drive Tuesday to promote a major theme of his expected reelection campaign, touting what he said was a resurgence of US manufacturing -- and warning Republicans could tank the economy.

"I've been determined to make things in this country again, to build American manufacturing capacity," Biden said at Wolfspeed, a semiconductor manufacturing plant in Durham, North Carolina, that recently announced a $5 billion expansion.

Ramping up US capacity in a global race to produce the tiny, high-tech components at the heart of most modern technology has been a Biden priority since he took office in 2021.

His trip to the factory kicked off what the White House is calling a three-week "Investing in America" tour where top officials will visit some 20 states to tout newly created manufacturing jobs in the semiconductor industry and in a variety of other sectors boosted by massive government incentives.

According to the White House, more than $435 billion in new investments has been announced under Biden, about half of that in clean energy and electric vehicle companies, and the other half in semiconductors.

"If we invest in America, we can change the country's future," said Biden, who has not yet announced a bid for a second term in 2024, but has made clear he intends to run.

Biden's boast about the economy contrasted with Republican accusations that he is responsible for stubbornly high inflation.

"Biden is out of touch with reality," Republican National Committee chairwoman Ronna McDaniel said in a statement titled "Biden's Bankrupting America Tour."

Biden lashed out in his North Carolina speech at Republican refusal to quickly extend the nation's debt limit, usually a relatively standard accounting procedure by Congress.

Numerous high-profile Republicans in Congress have instead suggested refusing to lift the debt ceiling as a way to strongarm Biden into steep budget cuts. According to economists, a US debt default would likely plunge the world economy into severe turmoil.

"They're putting our economy in jeopardy by threatening to refuse to pay America's bills," Biden said.

On Tuesday Republican Kevin McCarthy, speaker of the US House of Representatives, wrote to Biden accusing him of "refusing to negotiate any meaningful changes to out-of-control government spending."

Biden, who says he is open to trying to bring more balance to the budget, responded in a letter urging McCarthy to publish a detailed Republican budget proposal "so that we can have an in-depth conversation."

However, he stressed that any future budget deliberations must be in parallel to a straight approval for raising the current debt limit, ensuring that the country will not default when today's available money runs out some time this summer.

"That conversation must be separate from prompt action on the Congress' basic obligation to pay the Nation's bills and avoid economic catastrophe," Biden wrote in the letter published on his Twitter account.