were going to insist on tax increases. as darren gersh reports, the drama is not yet worrying investors, but it is complicating efforts to reach a $2 trillion package of spending cuts. >> reporter: bond markets greeted news the debt limit talks had broken down with a yawn today. the view seemed to be that this was just another act in a long- running political drama. two republicans-- majority leader eric cantor and arizona senator jon kyl-- abandoned negotiations, saying democrats were pushing for tax hikes they could not support. the next move may be house speaker john boehner's, but today, he did not give any ground. >> a tax hike cannot pass the house of representatives. it's not just that its a bad idea; it doesn't have the votes and it can't happen. >> reporter: boehner insisted the president needed to get more involved in the talks. but democrats like chris van hollen, a participant in the debt limit talks, charged republicans were pushing their anti-tax agenda at the expense of...