Politician and political analyst Brian Weke has predicted tough days ahead for Agriculture Cabinet Secretary Mwangi Kiunjuri, after he openly defied President Uhuru Kenyatta.

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The CS was on Thursday among the Mt Kenya politicians who threatened to shoot down the Building Bridges Initiative (BBI) report, after Uhuru vowed to endorse the same.

He was among 39 politicians who held a press conference at the parliament buildings, threatening to reject the report should it propose picking of the executive by the parliament.

And Weke now says that the CS might soon be shown the door for going against the President, at a time when all his remaining colleagues seem to be in support of Uhuru.

"Things might change for honorable Kiunjuri by Saturday, be alert (Na huyu mheshimiwa Kunjuri by Saturday huenda mambo itakuwa imebadilika, wekeni macho)," he said.

The former Makadara parliamentary hopeful made the remarks on Radio Jambo's Mazungumzo Waziwazi on Saturday, also attended by nominated Senator Isaac Mwaura.

He termed it wrong for the CS to be seen in the company of lawmakers defying the President, terming it lack of discipline, respect and too low for Kiunjuri to engage in such.

"It cant be that you as a minister is mobilizing parliamentarians to defy the president (Huwezi kuwa wewe waziri unaleta wabunge ati kuletea Rais defiance)," he added.

Uhuru and former Prime Minister Raila Odinga  formed the BBI and its taskforce to come up with solutions to the nation's recurrent leadership issues.

Both have promised to push it to success, with latest details indicating that the taskforce has proposed major constitutional changes in its report, which is yet to be handed to Uhuru.