Any decisions on future schemes would be taken following the spending review.
Tolling the M4 in Wales would be a matter for the Welsh Assembly.
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The heavy showers will ease off this weekend.
Labour MPs are attempting to build a consensus for a single challenger to Corbyn, while the big game in the Tory Party is Stop Boris.
Hefty showers and longer, slow moving downpours into this evening and again on Saturday - some lively with thunder.