请大家看两个句子

hotlsmilerUID??194452

Mr Mugabe's most trusted cronies were put in charge of the count, which is perhaps why ,for example ,his nephew won a seat with more votes than the initial tally said were cast in his constituency .


It is hard to see how providing diplomatic cover for an incompetent despot f its with this vision.

1.中的said were cast是修饰什么的？
2.中的providing 作何用处

randomorUID??200933

1、said were cast 中的cast应该是修饰 tally
2、providing diplomatic cover是一个词组。