By Norman Solomon, the coordinator of the online activist group RootsAction.org and the executive director of the Institute for Public Accuracy. He is the author of a dozen books including “War Made Easy: How Presidents and Pundits Keep Spinning Us to Death.”

Some leading Democrats in Congress are eager to turn the summit meeting between Donald Trump and Vladimir Putin away from avenues for improvements in U.S.-Russian relations, even if that means deflecting it toward World War III.

On Wednesday, the New York Times reported that “the White House announced that the meeting with Mr. Putin would be a formal bilateral discussion, rather than a quick pull-aside at the economic summit meeting that some had expected.” Meanwhile, Senate Democratic leader Chuck Schumer criticized the lack of a “specific agenda” for the Trump-Putin discussion and tweeted “the first few things that come to my mind” — 10 items denouncing Russia and not a single step to help avert a nuclear war between that country and the United States.

What a contrast with another Democrat, former Senator Sam Nunn, who signed a June 27 open letter that urged Putin and Trump to focus on “urgently pursuing practical steps now that can stop the downward spiral in relations and reduce real dangers.” The letter emphasized “reducing nuclear and other military risks.”

But these days, apparently, the Democratic leadership in Congress has much bigger fish to fry than merely trying to avert a global nuclear holocaust.

The Democratic Party leaders on Capitol Hill can’t be bothered with squandering much political capital or sound-bite airtime on the matters highlighted by the open letter, which Nunn — a former chairman of the Senate Armed Services Committee — signed along with former top British, German and Russian diplomats.

The open letter offered four crucial proposals for the meeting between Trump and Putin:

* “The starting point could be a new Presidential Joint Declaration by the United States and the Russian Federation declaring that a nuclear war cannot be won and must never be fought. This would make clear again that leaders recognize their responsibility to work together to prevent nuclear catastrophe, and would be positively received by global leaders and publics.” * “A second step could be to increase military-to-military communication through a new NATO-Russia Military Crisis Management Group. Restarting bilateral military-to-military dialogue between the United States and Russia, essential throughout the Cold War, should be an immediate and urgent priority. The focus of these initiatives should be on reducing risks of a catastrophic mistake or accident by restoring communication and increasing transparency and trust.” * “A third step could be to collaborate to prevent ISIS and other terrorist groups from acquiring nuclear and radiological materials through a joint initiative to prevent WMD terrorism. There is an urgent need to cooperate on securing vulnerable radioactive materials that could be used to produce a ‘dirty bomb.’ Such materials are widely available in more than 150 countries and are often found in facilities, such as hospitals and universities, that are poorly secured.” * “Fourth, discussions are imperative for reaching at least informal understandings on cyber dangers related to interference in strategic warning systems and nuclear command and control. This should be urgently addressed to prevent war by mistake. That there are no clear ‘rules of the road’ in the strategic nuclear cyber world is alarming.”

But top Democratic Party leaders hardly give high priority to such concerns. On the contrary: For many months now, their preoccupation has been to double, triple and quadruple down on an insidious — and extremely dangerous — political investment. Party leaders have positioned themselves to portray just about any concession from Trump in bilateral talks as a corrupt payoff.

The House minority leader, Nancy Pelosi, was ringing a familiar bell when she proclaimed on CNN in mid-May: “Every day I ask the question, ‘What do the Russians have on Donald Trump financially, politically or personally that he’s always catering to them?’”

“Given their vehement political investment in demonizing Russia’s President Putin,” I wrote in late April, “Democratic leaders are oriented to seeing the potential of détente with Russia as counterproductive in terms of their electoral strategy for 2018 and 2020. It’s a calculus that boosts the risks of nuclear annihilation, given the very real dangers of escalating tensions between Washington and Moscow.”

Days ago, looking ahead to the scheduled discussion between the two presidents at the G-20 summit in Germany, the home page of the Washington Post carried this headline: “Months of Russia controversy leaves Trump ‘boxed in’ before Putin meeting.” The tagline noted that “whatever course Trump takes will likely be called into question.”

Powerful custodians of the USA’s hugely profitable military-industrial complex prefer it that way. They aren’t much interested in any course toward Russia other than antagonism if not belligerence. There is enormous commitment to heading off the “threat” of genuine diplomacy and rapprochement.

Elite guardians of the U.S. warfare state, committed to what Martin Luther King Jr. called “the madness of militarism,” certainly don’t want a modern-day incarnation of the “spirit of Glassboro” that emerged 50 years ago when President Lyndon Johnson met at length with Soviet Premier Alexei Kosygin. Standing next to Kosygin at the end of their summit at a New Jersey college, Johnson said: “I have no doubt about it at all” that “it does help a lot to sit down and look a man in the eye all day long and try to reason with him, particularly if he is trying to reason with you.”

If Trump says anything like that after meeting with the Kremlin’s leader this week, you can expect some misguided Democratic partisans to denounce him as a Putin tool.

While many people are eager for constructive dialogue between the United States and Russia, on Capitol Hill the efforts to prevent such a possibility are fierce and unrelenting. Ultra-hawks like Senators Lindsey Graham and John McCain are among quite a few Republicans doing all they can to prevent genuine diplomacy between Washington and Moscow. But much of the most unhinged rhetoric is coming from Democrats, often with the “progressive” label.

To sample just how far downhill the discourse has gone in the frenzy to take genuine U.S.-Russian diplomacy off the table, consider this tweet that a longtime member of Congress with an antiwar past, Democrat Maxine Waters, sent out a week ago: “When Trump goes to kiss Putin’s ring at the G20 meeting, maybe he should just return to Russia w/ him & their favorite amb. Sergey Kislyak.”

The director of the Kennan Institute at the Woodrow Wilson Center, Matthew Rojansky, pointed out days ago: “The momentum in relations between the world’s two big nuclear powers is now so negative, that it really is time to call a halt to anything that looks like further escalation or deterioration.”

Yet that negative momentum is what many members of Congress are trying to increase. Words like “irresponsible” and “reckless” don’t begin to describe what they are doing.