period of Republican control began, Rubio pushed for the elimination of the "risk corridors" used by the federal government to compensate insurers for their losses as part of the Patient Protection and Affordable Care Act (PPACA). The risk corridors were intended to be funded by profitable insurers participating in the PPACA, but since insurer losses have significantly exceeded their profits in the program, the risk corridors have been depleted. His efforts contributed to the inclusion of a provision in the 2014 federal budget that prevented other funding sources from being tapped to replenish the risk corridors. In March 2015, Rubio and Senator Mike Lee, Republican of Utah, proposed a tax plan that according to The Wall Street Journal, combined thinking from "old-fashioned, Reagan-era supply-siders" and a "breed of largely younger conservative reform thinkers" concerned with the tax burden on the middle class. The plan would lower the top corporate income tax rate from 38% to 25%, eliminate taxes on capital gains, dividends, and inherited estates, and create a new child tax credit worth up to $2,500 per child. The plan would set the top individual income tax rate at 35%. It also included a proposal to replace the means-tested welfare system, including food stamps and the Earned Income Tax Credit, with a new "consolidated system of benefits". According to analysis by Vocativ as reported by Fox News, Rubio missed 8.3% of total votes from January 2011 to February 2015. From October 27, 2014, to October 26, 2015, Rubio voted in 74% of Senate votes, according to an analysis by GovTrack.us, which tracks congressional voting records. In 2015, Rubio was absent for about 35% of Senate votes. In historical context Rubio's attendance record for Senate votes is not exceptional among senators seeking a presidential nomination; John McCain missed a much higher percentage of votes in 2007. But it was the worst of the three senators who campaigned for the presidency in 2015. During his Senate tenure, Rubio has co-sponsored bills on issues ranging from humanitarian crises in Haiti to the Russian incursion into Ukraine, and was a frequent and prominent critic of Obama's efforts in national security. On May 17, 2016, Rubio broke from the Republican majority in his support of Obama's request for $2 billion in emergency spending on the Zika virus at a time when Florida accounted for roughly 20% of the recorded cases of Zika in the U.S.,