Foreign policy
In August 2010, Sherman introduced legislation aimed at rescinding China's Most Favored Nation status as long as there was not "a more level playing field between our two nations". He said, "the U.S.-China trade relationship is horrendously lopsided".
Sherman has introduced or co-sponsored more than 20 bills in the 111th and 112th Congresses that he says "enact tougher sanctions to isolate Iran economically and diplomatically". His efforts have included legislation designed to close loopholes for U.S. companies with subsidiaries operating in Iran, and to curtail U.S. funding of international organizations providing loans to Iran.
Sherman has been a strong supporter and advocate of the U.S-Israel relationship, consistently supporting aid to Israel. In 2016, he called the American Israel Public Affairs Committee (AIPAC), Washington's chief pro-Israel lobbying and advocacy organization, "the single most important organization in promoting the U.S.-Israel alliance". In 2004, Sherman first introduced the U.S.-Israel Energy Cooperation Act. It provides grants to joint ventures between American and Israeli academics and private companies that conduct research and develop energy-efficient and renewable energy technologies.
On July 9, 2014, Sherman appeared as a guest commentator on the Al Jazeera America's network. During his appearance, he criticized the network's Qatar-based owners for funding Hamas. Sherman said: "Every one of those rockets [fired by Hamas into Israeli cities] is a war crime, almost every one. Of course it's a war crime committed by Hamas. And of course the owners of this TV network help fund Hamas." Sherman emphasized that Hamas often aims attacks at civilian targets. The Qatari government owns Al Jazeera.
In December 2014, Sherman and Representative Pete Roskam requested new sanctions on Qatar in a letter to Secretary of Treasury Jack Lew. They also asked for a detailed accounting of public and private financing from within Qatar for Hamas, Al-Qaeda, the Islamic State, and the al-Nusra Front.
Sherman and other pro-Israel members of Congress have introduced legislation to allow Israel to be part of the visa waiver program. The legislation failed because the Israeli government was unwilling to grant reciprocal visa-free travel for all U.S. citizens.
As a senior member of the House Committee on Foreign Affairs, Sherman has focused on Congressional recognition of the Armenian genocide, as well as increasing funding to Armenia and Nagorno-Karabakh, which is part of Azerbaijan, but was under the control of the Republic of Artsakh from 1994 until 2023. He called for the imposition of sanctions against Azerbaijan.
Sherman urged the Trump administration to take a tougher line on China by imposing sanctions on Chinese officials who are responsible for human rights abuses against the Uyghur Muslim minority in China's Xinjiang region. In March 2019, Sherman and other lawmakers wrote Secretary of State Mike Pompeo a letter that read in part, "This issue is bigger than just China. It is about demonstrating to strongmen globally that the world will hold them accountable for their actions."