democrats are demanding he step down. chief congressional correspondent dana bash. >> reporter: christina and john, va secretary eric shinseki was summoned to a closed-door meeting on capitol hill yesterday afternoon, not to meet with a republican, but a frustrated democrat. and afterwards, shinseki told reporters that he has not offered the president his resignation. he said you guys know me better than that, but his remaining support is tenuous. do you still think that he should be at the helm? >> i have not called for general shinseki to resign, although i have to admit, i'm getting a little bit closer. the reports that continue to come are appalling. these are men and women who served our country, and we've not just let them down, we've let them die! >> reporter: congress is stepping up its investigation of the va, but three va officials scheduled to attend a house veterans affairs committee meeting yesterday morning didn't show up. and later in the afternoon, the