Final answer:
The House of Representatives (HoR) is generally considered to be 'safer' in terms of incumbency compared to the Senate.
Step-by-step explanation:
In terms of incumbency, the House of Representatives (HoR) is generally considered to be 'safer' than the Senate.
This is because incumbents in both the HoR and the Senate enjoy high rates of reelection, but the HoR has historically higher rates of incumbency. This is often referred to as the incumbent advantage or the incumbency effect.
The advantage in financing, higher level of name recognition, and support from political parties are factors that contribute to the higher reelection rates of House members.