青云翻译

He failed to make voters believe he is the appropriate candidate for Senator, the reason may be one of his campaign speech on television

He failed to convince voters that he is the right person senators, one reason for this might be his campaign speech on TV

He has not been able to cause the voter to believe he is senator's appropriate candidate, one of reasons possibly is he on the television campaign lecture

He was not able to make voters believe that he is a suitable candidate Senator and one of the reasons for this is that he may be in the campaign speech on TV.

He failed to convince voters that he is the right person senators, one reason for this might be his campaign speech on TV