[6] Bopp is known for his staunch social conservatism,[7][8] and his past and present clients are "a who's who of social conservatism," including the Traditional Values Coalition, the Home School Legal Defense Association, Concerned Women for America, and the Federation for American Immigration Reform.

[10] A study conducted in 2014 showed that Bopp was one of a comparatively small number of lawyers most likely to have their cases heard by the Supreme Court.

A compromise resolution was passed instead, condemning President Barack Obama and the then-Democratic congressional majority for "pushing America toward socialism and more government control.

[19] Bopp opposed efforts by billionaire Republican Paul E. Singer to add a statement to the party platform committing the party "to respect for all families," a signal of openness to LGBT Americans; Bopp called the proposed language "redundant and superfluous.

"[18] Bopp also opposed efforts by delegate Rachel Hoff (the first openly gay member of a Republican platform committee) to include a reference in the platform to the 2016 attack on a gay nightclub in Orlando; Bopp stated that including such language (which was ultimately voted down) would be "identity politics.

"[20] Bopp opposed an effort by some delegates to replace the 60-page platform that the committee had adopted with a simplified two-page "statement of principles" that excluded any mention of contentious issues, such as same-sex marriage.

[22] This lawsuit was filed after the identities of people supporting California Proposition 8 were revealed as a result of disclosure laws.

Bopp filed four lawsuits challenging the election results in four swing states won by Biden—Pennsylvania, Michigan, Georgia and Wisconsin.

[25] Documents subsequently revealed in Eshelman's litigation showed that Bopp and True the Vote coordinated with Trump allies, such as Trump's personal attorneys Rudolph W. Giuliani and Jay Sekulow, as well as Senator Lindsey Graham and Oracle Corporation founder Larry Ellison.

[6] Bopp previously represented parties challenging provisions of the Bipartisan Campaign Reform Act of 2002 in other cases, including Christian Civic League of Maine v. Federal Election Commission.

[47][48] In Federal Election Commission v. Beaumont (2003), Bopp represented North Carolina Right to Life, Inc., and others in the U.S. Supreme Court, unsuccessfully arguing that a direct contribution prohibition to nonprofit advocacy corporations violated the First Amendment.

[49] In Republican Party of Minnesota v. White (2002), Bopp argued on behalf of the challengers to a Minnesota rule of judicial conduct barring candidates for judicial office from expressing their views on disputed legal and political issues; the U.S. Supreme Court agreed, 5–4, that the rule was unconstitutional.

[53][54] The plaintiffs in the lawsuit, Crawford v. U.S. Department of Treasury, alleged that a number of provisions of the act unconstitutionally violate privacy rights of U.S. citizens, while burdening both private individuals and the financial institutions that they patronize.

[57] In 2022, responding to reports that a 10-year-old rape victim travelled from Ohio to Indiana to receive an abortion, Bopp said that model legislation he developed for the National Right to Life Committee would have banned that abortion; he also said that they believed that the child should have been legally forced to carry the pregnancy to full term and give birth, and "we would hope that she would understand the reason and ultimately the benefit of having the child.