Now Playing: Dogs have fun in snow and sand

Now Playing: Best of Luke Combs

Now Playing: City of Bayonne, NJ, hosts basketball game for seniors

Now Playing: How scientists are tracking disease-carrying mosquitoes

Now Playing: Senators discuss new gun violence prevention legislation

Now Playing: IDF begins ground maneuvers into southern Gaza

Now Playing: Pacific Northwest expects storms and snow

Now Playing: Small town’s lighted tractor parade brings holiday cheer

Now Playing: White House Press Secretary Karine Jean-Pierre on the economy under President Biden

Now Playing: University officials testify at House hearing on antisemitism

Now Playing: Republicans candidates set for 4th debate

Now Playing: Wrongful death lawsuit filed against Dollar General

Now Playing: Students share how the Israel-Hamas war impacted their college experience

Now Playing: Powerful storm slams Pacific Northwest

Now Playing: Massive blast destroys home during police search

Now Playing: Ivy League presidents attend hearing on antisemitism

Now Playing: Tuohy family accuse Michael Oher of extortion

Now Playing: Student files claim after hit by driver in ‘promposal’-gone-wrong

Now Playing: Former US ambassador to Bolivia arrested: sources

Now Playing: Security guard killed in stabbing at Macy's in Philadelphia