tight-rope-walk

verb2

1. •
   To walk on a tightrope or on (something) as though on one.

   • It was just 78 years ago that […] [Charles] Blondin tightrope-walked across the Niagara, […] — 1937
2. •
   (figurative) To take a perilous course between alternatives.

   • Several of the “Biden 16” are like [Brian] Fitzgerald, winning year after year by tightrope-walking between challengers in primaries and general elections. — 2024