Teaching

Democratic presidential candidate former U.S. Secretary of Housing and Urban Development Julian Castro speaks during a meeting with Iowa State University students and Story County democrats, Tuesday, May 7, 2019, in Ames, Iowa. (AP Photo/Charlie Neibergall)

Thousands of teachers and education supporters march in Portland, Ore., Wednesday, May 8, 2019. Tens of thousands of teachers across Oregon walked off the job Wednesday to demand more money for schools, holding signs and wearing red shirts that have become synonymous with a nationwide movement pushing lawmakers to better fund education. (Beth Nakamura/The Oregonian via AP)

In this April 10, 2019 photo educators from across the metro are gathered at Pioneer Courthouse Square to press the Oregon Legislature for more school funding. Tens of thousands of teachers are expected to walk out across Oregon this week, adding to the string of nationwide protests over class sizes and education funding. Schools around the state, including Oregon's largest district, Portland Public Schools, will close for at least part of Wednesday, May 8, 2019 as educators press for more money from lawmakers. (Mark Graves/The Oregonian via AP)

FILE - In this April 10, 2019, file photo, Education Secretary Betsy DeVos testifies before the House Education and Labor Committee at a hearing on 'Examining the Policies and Priorities of the U.S. Department of Education' on Capitol Hill in Washington. Education, it’s safe to say, is not President Donald Trump’s top priority. Instead, he entrusts that realm to Education Secretary Betsy DeVos, who after two years has emerged as one of the most polarizing figures in the Cabinet but also one of its most enduring members. (AP Photo/Manuel Balce Ceneta, File)

FILE - In this Sept. 10, 2018 file photo, striking teachers carry picket signs as they march around the Tacoma School District Central Administration Building, in Tacoma, Wash. The shadow of the past year's teacher protest movement is hanging over state capitals, where officials are piecing together the money to make good on promised pay raises and try to forge a sustainable funding formula for the future. From Washington state and Arizona to Oklahoma and Texas, lawmakers are confronting a new political reality that the "Red4Ed" movement left behind. (AP Photo/Ted S. Warren,File)

Teachers from across Poland gather in Warsaw, Tuesday, April 23, 2019. The teachers demand higher wages in a long-running dispute that is emerging as another fissure in a deeply divided society. (AP Photo/Czarek Sokolowski)

School children rally in support of Polish teachers who are on strike in Warsaw, Poland, on Tuesday April 9, 2019. Teachers held a second day of an open-ended strike on Tuesday demanding higher wages.(AP Photo/Czarek Sokolowski)

In this Friday, March 8, 2019, photo, U.S. Sen. Kamala Harris, D-California, speaks at a town hall gathering in Hemingway, S.C. On Thursday, March 28, 2019, Harris announced a slate of backers for her presidential campaign in this early-voting state, including three state lawmakers. (AP Photo/Meg Kinnard)

South Bend Mayor Pete Buttigieg speaks to a crowd about his Presidential run during the Democratic monthly breakfast held at the Circle of Friends Community Center in Greenville, S.C. Saturday, March 23, 2019. (AP Photo/Richard Shiro)