The meeting features some of the biggest elites in the world, where Trump's America First agenda will likely clash with a forum dedicated to economic globalism.
President Trump will attend the World Economic Forum, a gathering of leaders, bankers and economists in Switzerland later this month, the White House says.
Trump would be the first sitting USA president to attend the meeting of bankers, corporate chiefs, academics and investors since Bill Clinton in January 2000.
Xi Jinping became the first Chinese president to attend the forum in 2017, when Mr Trump was represented by Anthony Scaramucci, who later served a brief and explosive tenure as Mr Trump's White House communications director.
The lone attendee from his coterie of advisers previous year was hedge fund manager Anthony Scaramucci, who later served briefly as Trump's communications director. Modi and Trump met twice a year ago - in Washington DC and in Manila at the Asean meet.
Sanders said that Trump would defend his agenda while participating in the forum of global elites.
This year's theme reflects the gathering's worldwide flavor: "Creating a Shared Future in a Fractured World".
Ms Sanders rejected the notion that Mr Trump's attendance symbolised he was backing away from his message of economic nationalism. He is threatening to end the Nafta free trade agreement with Canada and Mexico, issue trade sanctions against China and scrap the Iran nuclear deal. Neither George W Bush nor Barack Obama visited the conference.
Clinton first attended the event in 2000, the forum's 30th anniversary.