David Frum : President Obama has a record that should be questioned in the debates . Comment: Frum : Ask about slow economic recovery and what level of taxation he thinks is too high . Ask Obama how he would govern differently in second term , Frum says .
David Frum : President Obama has a record that should be questioned in the debates . He says Obama should be asked about results of Afghan surge and `` green-on-blue '' attacks . Frum : Ask about slow economic recovery and what level of taxation he thinks is too high . Ask Obama how he would govern differently in second term , Frum says .