“This country has enabled this to happen and will not make it stop,” said Anna Keaney.
The attack took place at the K-12 school, which serves about 390 students.
President-elect Donald Trump has announced Sean Duffy, a former congressman from Wisconsin, as his choice for transportation secretary.
The development marked another substantial victory for the politician, who is accepting the nomination of the Republican Party for president for the third time this week.
They questioned the response of the government to several appeals made on the issue.
The study, published on Thursday, found that 14 states no longer have any clinics providing abortions as of October 2.
