David Trone is 4 years older than Chris Van Hollen and has 8 years less seniority than Van Hollen.

[Celerity]

2. Trone is also a No Labels' Problem Solvers member, which is a hard pass for me at primary level for an open seat.

https://problemsolverscaucus.house.gov/members

https://www.nolabels.org/problem-solvers-caucus

Inspired by the No Labels Movement, the Problem Solvers Caucus is a bipartisan group committed to cooperating on key issues. Founded in 2017, the caucus is quickly becoming one of the most influential blocs on Capitol Hill.

The Problem Solvers Caucus features 58 House members — evenly divided between the parties — with each member committed to cooperation and dialogue. The group operates as an independent member-driven caucus that sets its own rules, standards and priorities.

The Problem Solvers Caucus developed out of informal "get to know you" meetings on Capitol Hill hosted by No Labels in the early 2010s. Our mission evolved over time and the group became larger and more structured. The "Problem Solvers" formally organized in 2017 and since then they’ve successfully broken through the gridlock of today’s politics many times getting key legislation passed with bipartisan support.