Sen. Kirsten Gillibrand (D., N.Y.) said she has to consider whether she is "called" to run for president in 2020.

Asked about her decision-making process, Gillibrand responded, "So, for me it's whether this is what I need to be doing. It's sort of, you know, are you prepared in a time such as this to do something that's very hard and difficult, regardless of whether you will win, regardless of whether it's easy, but you're doing it because out of that moral conviction?"

"And so for me the sole thing I have to consider, that I have to think long and hard about is whether this is what I'm called to do," Gillibrand told Chris Hayes, host of MSNBC's "All In." "And otherwise, I will continue to fight as hard as I can for New Yorkers and be a voice for them in Washington and fight for the middle class families that are desperate and need health care as a right and all the other issues that are pressing on families in my state."

Last week, Gillibrand said she would give a 2020 run "a long, hard thought of consideration," although last month she said she would serve her six-year term in the Senate.

A Politico/Morning Consult poll found former Vice President Joe Biden and Sen. Bernie Sanders (I., Vt.) leading a crowded potential 2020 Democratic primary field, with Gillibrand receiving support from 1 percent of people polled. A Quinnipiac University poll from February showed 58 percent of New Yorkers opposed Gillibrand launching a bid for the White House.

During her interview with Hayes, Gillibrand also said the decision of whether to run for president is a "moral question" for her. She also expressed support for her fellow New York senator, Minority Leader Chuck Schumer (D.).