But first Donald Trump's sacked campaign manager has underlined his support for the presumptive Republican candidate in the US presidential election, hours after he was fired. 

概况：美国共和党总统竞选人唐纳德·特朗普20日解雇了竞选经理科里·莱万多夫斯基。特朗普在共和党全国代表大会召开前一个月临阵换将，被认为是整合班子、备战两党对决之举。由于莱万多夫斯基一直负责特朗普的竞选策略，他的离去也引发猜测：莫非，号称反建制、不按常理出牌的特朗普将以更传统的方式迎战民主党竞选人希拉里·克林顿？