Reserve, and supported the Iraq War. He opposes same-sex marriage, and has voted against legislation which would establish net neutrality, which refers to the principle that Internet service providers cannot discriminate by user, content, website, or platform, and has voted in favor of legislation that would require photo IDs for voting in federal elections. He had a "D" rating from NORML regarding his voting record on cannabis-related matters. He twice voted against providing veterans access to medical marijuana via their Veterans Health Administration doctor's recommendation. He blocked a vote on an amendment that would have given banks the ability to lend to legal, state-regulated marijuana businesses without having to worry about subsequent punishment by federal financial regulators. He was one of the 24 Republicans (and 227 Democrats) to vote "yes" on the 2008 effort to impeach President G.W. Bush for misleading the United States into going to war in Iraq. Town halls and criticism of activist Frelinghuysen, who has not appeared at a public town hall since 2013, prefers small events at schools, community groups, and veteran organizations, according to The New York Times. Since the 2016 election, a grassroots activist group called NJ 11th for Change has organized demonstrations and town halls in an effort to get a face-to-face between Frelinghuysen and his constituents. In 2017, Frelinghuysen wrote a campaign fundraising letter to a board member of a local bank. While Frelinghuysen did not name NJ 11th for Change, a progressive lobbying group, he included a handwritten postscript warning "One of the ringleaders works in your bank!", with an attached news article about one of NJ 11th for Change's members. The individual subsequently resigned from her position as assistant general counsel and senior vice president at that bank, citing pressure over her political involvement as one of the reasons. According to a lawyer and former staffer for the Office of Congressional Ethics, to be unlawful such a letter would need to threaten action or be written on congressional stationery, not campaign letterhead, and/or the bank would have to have business pending before a Frelinghuysen committee. The progressive lobbying group Citizens for Responsibility and Ethics in Washington (CREW) opined that "whether or not [Frelinghuysen's letter] breaks a criminal statute is one issue, but the very clear issue is that it appears that a member of Congress might be using his power to threaten someone's employment because of their political activities."