All the interruptions, alignments and attacks of the Democratic debates

The first Democratic debate gave viewers a glimpse of how 20 of the 23 candidates would interact with their competitors, President Trump included. Throughout the two, two-hour events, candidates interrupted, attacked and occasionally aligned themselves with each other.

The second debate was rowdier than the first, with candidates angling to make their mark amid the two who are leading polls — former vice president Joe Biden and Sen. Bernie Sanders (Vt.).

Candidates focused their interactions on those they shared the night with. The only mention of a candidate not on...