Still unknown? Many have yet to form opinions on Warren

FILE - In this Oct. 9, 2019, file photo, Democratic presidential candidate Sen. Elizabeth Warren speaks about the student loan debt relief legislative...
FILE - In this Sept. 28, 2019, file photo, Democratic presidential candidate Sen. Elizabeth Warren, D-Mass., addresses a crowd at Clinton College, a h...

FILE - In this Oct. 9, 2019, file photo, Democratic presidential candidate Sen. Elizabeth Warren speaks about the student loan debt relief legislative...

FILE - In this Sept. 28, 2019, file photo, Democratic presidential candidate Sen. Elizabeth Warren, D-Mass., addresses a crowd at Clinton College, a h...

RALIEGH, N.C. (AP) — Elizabeth Warren has risen in the polls and is now a front-runner in the 2020 Democratic primary who's portrayed by Kate McKinnon on "Saturday Night Live."

But for many people, the Massachusetts senator is still a relative unknown.

A recent poll from The Associated Press-NORC Center for Public Affairs Research showed that nearly one-quarter of Americans said they don't know enough about Warren to have an opinion.

The same poll shows that just about 1 in 10 Americans say they don't know enough about former Vice President Joe Biden or Sen. Bernie Sanders of Vermont.

That presents both a challenge and opportunity for Warren. She has to keep introducing herself to voters but she also has the chance to increase her support.