Sen. Bernie Sanders Bernie SandersMcConnell accuses Democrats of sowing division by 'downplaying progress' on election security The Hill's Campaign Report: Arizona shifts towards Biden | Biden prepares for drive-in town hall | New Biden ad targets Latino voters Why Democrats must confront extreme left wing incitement to violence MORE (I-Vt.) says he boycotted a White House briefing on North Korea because he “did not want to be part of a photo opportunity.”

“What I did not want to be is part of a photo opportunity or a political effort on the part of the White House,” Sanders told MSNBC’s Chris Hayes on Wednesday.

In an unusual move, the White House invited all 100 senators to attend the briefing at the Eisenhower Executive Office Building.

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Sanders said such briefings are typically held at the Capitol in a Sensitive Compartmented Information Facility (SCIF) room, which is a specially and securely designed room for highly classified congressional briefings.

“These highly — supposedly — highly classified briefings always take place in what’s called the SCIF room in Congress, which is a very well-designed room to prevent any cybersecurity issues, with security issues in general."

Despite calling for bipartisan efforts to deal with North Korea, Sanders said he declined to be part of the White House “roadshow.”

“The issue of North Korea is enormously important, and we need bipartisan efforts to control North Korea’s very aggressive nuclear efforts, but I did not want to be part of a roadshow for the White House,” he said.

Sen. Ben Cardin Benjamin (Ben) Louis CardinPPP application window closes after coronavirus talks deadlock Congress eyes tighter restrictions on next round of small business help Senate passes extension of application deadline for PPP small-business loans MORE (D-Md.), the top Democrat on the Senate Foreign Relations Committee, also called the briefing at the White House an “unusual setting,” adding that he didn't “want to read too much into this.”

The meeting came after the administration said it would take a hardline approach toward the increasingly hostile state amid rising tensions.

Secretary of State Rex Tillerson and Director of National Intelligence Dan Coats Daniel (Dan) Ray CoatsFBI chief says Russia is trying to interfere in election to undermine Biden The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Trump, Biden renew push for Latino support Former Intel chief had 'deep suspicions' that Putin 'had something on Trump': book MORE, along with other top administration officials, briefed the senators.

President Trump briefly joined the meeting.