Former Republican senator Tom Coburn dies aged 72

* Oklahoman served in House of Representatives and Senate* Rightwing Republican advocated range of conservative causes* Resigned senate in 2014 after cancer diagnosisThe former Republican senator Tom Coburn has died at 72, according to a newspaper in his native Oklahoma.The Oklahoman published a statement from the senator’s family and said he died after “a long fight with prostate cancer”. Coburn, the paper said, "served in the Senate from 2005 to 2015 and in the US House of Re